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Search: Posts Made By: mahlon_r
Forum: Traditional Aircraft Engines 05-11-2021, 05:51 AM
Replies: 23
Views: 1,286
Posted By mahlon_r
When you do a dynamic prop balance you are not...

When you do a dynamic prop balance you are not only balancing the prop spinner combo but also the entire rotating mass of the engine as well. So based on your results the engine and prop are not...
Forum: Traditional Aircraft Engines 04-23-2021, 09:47 AM
Replies: 13
Views: 1,687
Posted By mahlon_r
Looks like the thru bolts may be leaking. Could...

Looks like the thru bolts may be leaking. Could also be some of the other base studs. They are not always into bling holes. If it is the thru studs, before attempting any fix, retorque them and make...
Forum: Traditional Aircraft Engines 03-22-2021, 07:33 AM
Replies: 7
Views: 624
Posted By mahlon_r
if memory serves me correctly, the P/N of the...

if memory serves me correctly, the P/N of the slotted cover plate is 72378.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 03-21-2021, 06:45 AM
Replies: 7
Views: 624
Posted By mahlon_r
If you get a governor drive plate that has the...

If you get a governor drive plate that has the small recess machined in it as depicted in the picture in the link below. ( A little hidden by the gasket...) You will be able to run fixed pitch...
Forum: Traditional Aircraft Engines 03-01-2021, 05:45 AM
Replies: 50
Views: 6,670
Posted By mahlon_r
" word of caution on the plunger...Iíve seen one...

" word of caution on the plunger...Iíve seen one fall completely out and down into oil pan on an O-540. A magic man of a A&P I know was able to fish it out and replace it back up into its proper...
Forum: Traditional Aircraft Engines 02-16-2021, 05:56 AM
Replies: 1
Views: 551
Posted By mahlon_r
not likely imho. Good Luck, Mahlon

not likely imho.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 02-12-2021, 05:38 AM
Replies: 5
Views: 606
Posted By mahlon_r
The fittings from the old pump will not work with...

The fittings from the old pump will not work with the new one without adapters . The new pump uses o-ring bulkhead type fittings. So you will need to procure that style or get an adapter that uses an...
Forum: Traditional Aircraft Engines 01-08-2021, 05:07 AM
Replies: 14
Views: 1,531
Posted By mahlon_r
John, you should confirm that your cover plate,...

John, you should confirm that your cover plate, on the governor drive is the one that has the milled recess to connect the port on the pad that would feed the plumbing to the front of the engine to...
Forum: Traditional Aircraft Engines 01-07-2021, 04:20 PM
Replies: 14
Views: 1,531
Posted By mahlon_r
If the engine has a governor pad on, from the...

If the engine has a governor pad on, from the factory, it it comes setup for constant speed. I know you have stated you want to use the engine fixed pitch but do you think you will ever go constant...
Forum: Traditional Aircraft Engines 12-29-2020, 06:20 AM
Replies: 33
Views: 3,547
Posted By mahlon_r
Does the engine get rough as your tach indicates...

Does the engine get rough as your tach indicates the rpm loss? I would ignore the rpm loss and lean until you see peak on the first of the three instrumented cylinders to hit peak EGT. What is the...
Forum: Traditional Aircraft Engines 12-23-2020, 05:38 AM
Replies: 38
Views: 4,223
Posted By mahlon_r
You are correct. Any pump with a cotter pinned...

You are correct. Any pump with a cotter pinned idler shaft is exempt from that AD.
Merry Christmas ,
Mahlon
Forum: Traditional Aircraft Engines 12-22-2020, 05:36 AM
Replies: 38
Views: 4,223
Posted By mahlon_r
Saw a sintered iron type pump fail once and saw...

Saw a sintered iron type pump fail once and saw many of those with way excessive wear at the woodruff key. But never saw a failure of the steel and aluminum ones. Never saw excessive wear with them...
Forum: Traditional Aircraft Engines 12-21-2020, 05:43 AM
Replies: 38
Views: 4,223
Posted By mahlon_r
Hey Bob, Did those engines have a two piece oil...

Hey Bob, Did those engines have a two piece oil pump housing? If so in that case the AD wouldn't apply to those aluminum and steel impellers.
Merry Christmas,
Mahlon
Forum: Traditional Aircraft Engines 12-15-2020, 05:58 AM
Replies: 9
Views: 1,800
Posted By mahlon_r
Ring gear looks like it will work fine to me....

Ring gear looks like it will work fine to me. They make a shim for between the starter and the crankcase to get proper backlash of the teeth. You might try installing that. It helps with the weird...
Forum: Traditional Aircraft Engines 11-30-2020, 09:19 PM
Replies: 20
Views: 1,881
Posted By mahlon_r
Your engine equivalent would be an...

Your engine equivalent would be an IO-540-D4A5.
All of our records were electronically stored. We are talking thousands of work orders over like 20 plus years. All of our systems were electronically...
Forum: Traditional Aircraft Engines 11-23-2020, 07:36 AM
Replies: 9
Views: 1,038
Posted By mahlon_r
There are two different styles of inlet flanges...

There are two different styles of inlet flanges based on weather you have the thick or thinner little flange on the intake pipe itself. If you have the thicker flange on the pipe with the thinner...
Forum: Traditional Aircraft Engines 11-23-2020, 06:30 AM
Replies: 9
Views: 1,038
Posted By mahlon_r
!/4-20 fasteners are normally torques to 96-100...

!/4-20 fasteners are normally torques to 96-100 Inch pounds and 5/16 course fasteners are normally 205 inch pounds. Don't know where you got the 40 inch pound figure for the exhaust nuts but that is...
Forum: Traditional Aircraft Engines 11-12-2020, 03:08 PM
Replies: 10
Views: 2,358
Posted By mahlon_r
Opps forgot about the IO-360-B1B. Yes that would...

Opps forgot about the IO-360-B1B. Yes that would be the closest performace wise and parts wise as long as you have precision FI. Or you could use the O-360-a1a and then use the FI info for the type...
Forum: Traditional Aircraft Engines 11-12-2020, 08:49 AM
Replies: 10
Views: 2,358
Posted By mahlon_r
You need clarification on your actual engine...

You need clarification on your actual engine model!!!!! Lycoming IO-360-A series engines are 200HP slant valve engines. ECI IO-360-A series engines are parallel valve 180 HP variants. The Lycoming...
Forum: Traditional Aircraft Engines 11-06-2020, 08:46 AM
Replies: 8
Views: 1,464
Posted By mahlon_r
Try Ebay. You need one from a 540. Looks like the...

Try Ebay. You need one from a 540. Looks like the going price is around 400.00
Maybe someone on the list has one they removed to save weight, that they want to sell.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 11-06-2020, 06:39 AM
Replies: 8
Views: 1,464
Posted By mahlon_r
You engine doesn't have the vacuum pump drive...

You engine doesn't have the vacuum pump drive assembly installed on that accessory pad. I believe you would need to acquire the drive assembly as well as 4 studs to install in the engine to mount the...
Forum: Traditional Aircraft Engines 10-27-2020, 07:03 AM
Replies: 10
Views: 2,358
Posted By mahlon_r
Had this info in some old tech sheets don't know...

Had this info in some old tech sheets don't know if it is still current. but I would imagine it is.
Good Luck,
Mahlon
Base Engine
O 100% Certified Parts, set up for Carbureted System
OX Set up...
Forum: Traditional Aircraft Engines 10-22-2020, 05:17 AM
Replies: 9
Views: 2,226
Posted By mahlon_r
Just like an o-360-a1a but with bendix/precision...

Just like an o-360-a1a but with bendix/precision fuel injection and retard breaker mags.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 10-20-2020, 02:36 PM
Replies: 17
Views: 3,146
Posted By mahlon_r
If you are worried about safety wire on the...

If you are worried about safety wire on the filter you could put a large hose clamp on the filter and the put a loop of safety wire around the screw portion with the wire going through the slot in...
Forum: Traditional Aircraft Engines 10-03-2020, 05:56 AM
Replies: 5
Views: 1,194
Posted By mahlon_r
What style relief valve cap do you guys have? One...

What style relief valve cap do you guys have? One that looks like a Bat Masterton derby? or a Abe Lincoln top hat? or the adjustable type with a screw adjustment out the end? If the first style, you...
Forum: Traditional Aircraft Engines 10-02-2020, 07:35 AM
Replies: 10
Views: 1,760
Posted By mahlon_r
yes titan is now owned by CM which owned us. So...

yes titan is now owned by CM which owned us. So they could support you. Contact Jim Ball. Tell him I said Hi.
You should treat you engine as if it were a Lycoming O or IO-360 when researching ad's....
Forum: Traditional Aircraft Engines 10-01-2020, 06:22 AM
Replies: 10
Views: 1,760
Posted By mahlon_r
We normally set up oil pressure to yield 70-80...

We normally set up oil pressure to yield 70-80 psi at temp in cruise. That is taking the oil pressure off one of the two1/8 pipe plug ports on the rear of the accessory housing designed for that...
Forum: Traditional Aircraft Engines 09-21-2020, 07:36 AM
Replies: 8
Views: 1,972
Posted By mahlon_r
What the other posters said. But beware that some...

What the other posters said. But beware that some sb's, just like AD's, are repetitive due at certain times in the engines life either by calendar time or hours of operation. So if your quest is to...
Forum: Traditional Aircraft Engines 09-16-2020, 08:22 AM
Replies: 2
Views: 1,127
Posted By mahlon_r
Yes its allowed via stc for the certified world....

Yes its allowed via stc for the certified world. and for experimental it isn't an issue.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 09-02-2020, 07:41 AM
Replies: 4
Views: 1,490
Posted By mahlon_r
by rotating I mean turning the crankshaft. if ...

by rotating I mean turning the crankshaft. if turning the engine upside down as a unit.. great, good practice.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 09-02-2020, 06:28 AM
Replies: 4
Views: 1,490
Posted By mahlon_r
It supplies oil from the nose bearing to the...

It supplies oil from the nose bearing to the propeller. I would fog it. if your engine is on a stand and not installed, imho you should not be rotating it all you are doing is wiping whatever oil you...
Forum: Traditional Aircraft Engines 09-01-2020, 06:53 AM
Replies: 22
Views: 3,595
Posted By mahlon_r
Some things to check if the carb is OK. But raw...

Some things to check if the carb is OK. But raw fuel collecting in the airbox would indicate that it isn't or there is a rag or something in the intake manifold.
Assuming you have a 10-5135 or...
Forum: Traditional Aircraft Engines 07-29-2020, 08:26 AM
Replies: 13
Views: 2,662
Posted By mahlon_r
My take is this. Your engine could not be...

My take is this. Your engine could not be installed in a certified aircraft as a certified engine. It is modified from its original state and those modifications are not supported by FAA approved...
Forum: Traditional Aircraft Engines 07-28-2020, 06:47 AM
Replies: 13
Views: 2,662
Posted By mahlon_r
Any engine conversion that increases the...

Any engine conversion that increases the Horsepower of the engine is a major alteration and requires a 337 in the certified world. I held a FAA approved process spec, for the repair station, that...
Forum: Traditional Aircraft Engines 07-18-2020, 06:39 AM
Replies: 5
Views: 2,020
Posted By mahlon_r
same procedures as a straight valve engine. Good...

same procedures as a straight valve engine.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 07-10-2020, 06:51 AM
Replies: 14
Views: 6,125
Posted By mahlon_r
check the guage and probe for accuracy! Good...

check the guage and probe for accuracy!
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 07-04-2020, 05:02 AM
Replies: 5
Views: 1,262
Posted By mahlon_r
Idle mixture setting has no effect on ICO. When...

Idle mixture setting has no effect on ICO. When the mixture is moved to ICO, a plate in the servo shuts the fuel off by closing the port that allows fuel out of the servo. At the same time the...
Forum: Traditional Aircraft Engines 06-28-2020, 06:58 AM
Replies: 7
Views: 1,129
Posted By mahlon_r
Are you going fuel injected or carbureted? The...

Are you going fuel injected or carbureted? The sumps are different between each, due to a difference in the mounting bolt pattern of the carb or fuel injector. Don't remember a horizontal carbureted...
Forum: Traditional Aircraft Engines 06-27-2020, 05:53 AM
Replies: 5
Views: 1,440
Posted By mahlon_r
There are two case options that can apply. One is...

There are two case options that can apply. One is that there are dowels at the case mating surfaces that have orings there and that prevents the leak and supplies the rigidity necessary to support...
Forum: Traditional Aircraft Engines 06-23-2020, 05:57 AM
Replies: 5
Views: 1,053
Posted By mahlon_r
That fitting was used on the rayjay turbo...

That fitting was used on the rayjay turbo conversion of that Io-320 engine and referenced the fuel pressure setting of the fuel pump to compressor discharge or upper deck pressure. Thus keeping the...
Forum: Traditional Aircraft Engines 06-18-2020, 05:12 AM
Replies: 21
Views: 3,977
Posted By mahlon_r
On parallel valve cylinders, whose heads are...

On parallel valve cylinders, whose heads are fairly prone to cracking, I would go with new cylinders at overhaul. But I would certainly repair one midlife, if the head wasn't cracked. On slant valve...
Forum: Traditional Aircraft Engines 06-15-2020, 06:14 AM
Replies: 6
Views: 1,968
Posted By mahlon_r
Not a part I would put in my engine! That is...

Not a part I would put in my engine! That is gross pitting not minor.
To answer your question the oil bleeds out around the tappet body in the crankcase bore. Some of that oil is supplied to the...
Forum: Traditional Aircraft Engines 06-06-2020, 09:28 AM
Replies: 6
Views: 1,162
Posted By mahlon_r
The starter to alternator mount support was just...

The starter to alternator mount support was just used as an additional support to help prevent alternator mount cracking. There are some certified installation that also have an additional support on...
Forum: Traditional Aircraft Engines 05-17-2020, 07:21 AM
Replies: 10
Views: 1,727
Posted By mahlon_r
That layer of sludge is what causes the pitting...

That layer of sludge is what causes the pitting and isn't protecting anything! The coating that the ad calls out to eliminate the inspections is protecting the ID surface from the sludge!
Good...
Forum: Traditional Aircraft Engines 05-08-2020, 07:15 AM
Replies: 37
Views: 7,026
Posted By mahlon_r
Is it a carb'd O-360 engine? If so what P/N...

Is it a carb'd O-360 engine? If so what P/N carb do you have? Maybe one that causes that type of scenario. 10-3878 is a common carb that has been known to cause that type of issue. 10-4164 or...
Forum: Traditional Aircraft Engines 04-11-2020, 07:29 AM
Replies: 14
Views: 1,988
Posted By mahlon_r
The idle mixture on a fuel servo is not adjusted...

The idle mixture on a fuel servo is not adjusted with a mixture screw. There is a turn buckle arrangement on the side of the fuel servo that has the mixture control. In between the two square blocks...
Forum: Traditional Aircraft Engines 04-06-2020, 08:11 AM
Replies: 5
Views: 779
Posted By mahlon_r
as Larry says, Look at the nuts that screw onto...

as Larry says, Look at the nuts that screw onto the spark plugs!!!!
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 03-31-2020, 06:37 AM
Replies: 14
Views: 2,068
Posted By mahlon_r
Newer mag drives have a slot machined into the...

Newer mag drives have a slot machined into the cup that holds the rubber drive isolators. New style mag drive rubbers have a rib on the rubber that fits into the slot on the drive to hold them from...
Forum: Traditional Aircraft Engines 03-22-2020, 09:32 AM
Replies: 11
Views: 1,654
Posted By mahlon_r
Leaky exhaust valve? Partially plugged fuel...

Leaky exhaust valve? Partially plugged fuel injector with floating type debris if it's an IO engine?
Stay Healthy,
Mahlon
Forum: Traditional Aircraft Engines 03-12-2020, 02:08 PM
Replies: 8
Views: 2,527
Posted By mahlon_r
My experience with piston pin plug failures was...

My experience with piston pin plug failures was that you were never really sure if the cooler was clean. Even with professional overhaul/ servicing... the only way to tell for sure, was with an Xray....
Forum: Traditional Aircraft Engines 02-28-2020, 12:32 PM
Replies: 28
Views: 5,614
Posted By mahlon_r
What type of relief valve cover do you have? Can...

What type of relief valve cover do you have? Can look like a Bat Masterson derby hat or an Abe Lincoln stove pipe hat or the stove pipe with an adjusting stem and nut out of the top. If its the...
Forum: Traditional Aircraft Engines 01-28-2020, 10:22 AM
Replies: 2
Views: 659
Posted By mahlon_r
Engine will not accelerate well out of idle and...

Engine will not accelerate well out of idle and will not run very well when cold.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 12-29-2019, 08:59 AM
Replies: 17
Views: 3,410
Posted By mahlon_r
So, if the cylinder is already to the point of un...

So, if the cylinder is already to the point of un bolting it from the engine, why not just go ahead and do that. Check things visually and if nothing abnormal sticks out like a sore thumb, change the...
Forum: Traditional Aircraft Engines 12-13-2019, 07:58 AM
Replies: 12
Views: 1,955
Posted By mahlon_r
have you tried adjusting the mixture leaner, when...

have you tried adjusting the mixture leaner, when it is doing it, to see if that will change anything?
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 12-12-2019, 06:05 AM
Replies: 12
Views: 1,955
Posted By mahlon_r
The governor will not maintain 2300 rpm un less...

The governor will not maintain 2300 rpm un less you set it to 2300rpm. If it is set for take off RPM then it will not kick in until you reach that RPM. So it is unlikely that the rpm is being...
Forum: Traditional Aircraft Engines 11-18-2019, 09:26 AM
Replies: 4
Views: 1,382
Posted By mahlon_r
10 years from manufacture if in quart bottles....

10 years from manufacture if in quart bottles. Should have a use by date or a manufacture date on the bottle and you should be able to go from there.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 11-12-2019, 12:33 PM
Replies: 2
Views: 873
Posted By mahlon_r
Check for a missing carb air temp port lead plug...

Check for a missing carb air temp port lead plug or a threaded plug there, if it was tapped at some point.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 11-06-2019, 06:19 AM
Replies: 22
Views: 17,480
Posted By mahlon_r
My 2 cents; Anything that prevents metal to metal...

My 2 cents;
Anything that prevents metal to metal contact between the case halves isn't good. You want as much rigidity there that is possible. Metal to metal there with nothing in between would be...
Forum: Traditional Aircraft Engines 10-29-2019, 05:42 PM
Replies: 16
Views: 3,413
Posted By mahlon_r
Don't know for sure if that will work with the...

Don't know for sure if that will work with the real engine mount and lord mounts installed. If not, the parts you need to make the banjo fitting are available from Lycoming. P/N AN-777-8d swivel,...
Forum: Traditional Aircraft Engines 10-23-2019, 10:01 AM
Replies: 11
Views: 2,542
Posted By mahlon_r
Personally, I would not worry about bearing...

Personally, I would not worry about bearing damage from turning the crank with no torque on the thru studs. I would worry about bearing damage from increased crush on them from a fretted case getting...
Forum: Traditional Aircraft Engines 10-15-2019, 07:04 AM
Replies: 5
Views: 1,096
Posted By mahlon_r
That could definitely cause it or a problem with...

That could definitely cause it or a problem with the intake pipe or a missing intake port plug on the replacement cylinder, as well.
Good Luck,
Mahlon
Forum: Traditional Aircraft Engines 10-14-2019, 04:54 AM
Replies: 5
Views: 1,096
Posted By mahlon_r
if your engine is fuel injected. you likely have...

if your engine is fuel injected. you likely have an intake leak somewhere. guessing that is due to the replacement cylinder or it's installation. If its carbureted maybe you some how affected the...
Forum: Traditional Aircraft Engines 09-27-2019, 05:48 AM
Replies: 4
Views: 882
Posted By mahlon_r
every certified installation, I ever saw, used a...

every certified installation, I ever saw, used a flat clamp on the servo side of the bead when using that servo. If you check the piper Cherokee six parts manuals for the 300 hp version, you can see...
Forum: Traditional Aircraft Engines 08-28-2019, 06:05 AM
Replies: 6
Views: 1,886
Posted By mahlon_r
Possible ignition problem that is causing that...

Possible ignition problem that is causing that plug to not fire at low power. Do a mag check at idle power or at 1000rpm to see if it's an issue. IMO If the cylinder head and top of the piston were...
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