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Search: Posts Made By: tacchi88
Forum: Traditional Aircraft Engines 11-05-2016, 05:23 PM
Replies: 15
Views: 5,948
Posted By tacchi88
Push rod length can be found on Lyc. SI 106j....

Push rod length can be found on Lyc. SI 106j. Ideal clearances between '040 and .050.
Forum: RV-10 05-01-2014, 07:36 PM
Replies: 31
Views: 15,761
Posted By tacchi88
RV1O down

It's been a while, so it's time to put this incident to rest. My flight was to have been a final check, of navigation "devices", since I was planning my first "long" ride. Alma Ga. has an ILS...
Forum: RV-7/7A 01-19-2014, 05:43 AM
Replies: 18
Views: 8,167
Posted By tacchi88
Smile Jettison Handle

:)I checked with a guru or two and the consensus was that the handle was not used. I was also told that removing and replacing the canopy can be a "bear". I retained the locking pins per plan and...
Forum: Propellers 12-29-2013, 06:22 PM
Replies: 17
Views: 4,130
Posted By tacchi88
2 or 3 blades?

According to the text books, fewer blades are better. From personal experience, my Piper Arrow's prop had tip blade damage, and required replacing them. Long story short, the prop shop made me an...
Forum: Fuel Injection Systems 06-21-2013, 08:02 PM
Replies: 86
Views: 24,414
Posted By tacchi88
Vqpor lock

We've been using mo gas exclusively (E10 included) in the Searey amphib (Rotax), our 182, and RV 10. Also help a friend who trains and tows banners with 172s, with mogas, all here is warm Florida,...
Forum: Electronic Ignition Systems 05-08-2013, 04:54 AM
Replies: 17
Views: 6,158
Posted By tacchi88
Years ago on a dynomometer we tested 7 brands of...

Years ago on a dynomometer we tested 7 brands of spark plugs. The best of the lot were Auto Lite, and Bosck. The poorest were the most popular, Champion and NGK.
Using an adapter will not affect...
Forum: Electronic Ignition Systems 05-08-2013, 04:41 AM
Replies: 13
Views: 7,680
Posted By tacchi88
Keep in mind that a standard magneto has "fixed"...

Keep in mind that a standard magneto has "fixed" ignition timing, while P Mag is managed (varies as required., In essence your engine would not get the full benifit of total timing management. In...
Forum: Florida (North) 08-18-2012, 03:38 PM
Replies: 6
Views: 1,876
Posted By tacchi88
I'm in JAX. A/P. IA, EAA Tech advisor building...

I'm in JAX. A/P. IA, EAA Tech advisor building RV7A
904-614-3163
Forum: RV-10 05-14-2012, 05:52 AM
Replies: 39
Views: 15,768
Posted By tacchi88
James, I've owned 3 factory planes and loved them...

James,
I've owned 3 factory planes and loved them all, especially my Arrow which I sold to purchase my RV10 kit. I have flown, though shortly, some of the planes you mentioned, and they all flew...
Forum: Traditional Aircraft Engines 11-26-2011, 06:20 PM
Replies: 6
Views: 3,994
Posted By tacchi88
Have extras. Can send ya 4 for cost of postage....

Have extras. Can send ya 4 for cost of postage. I'm in US, Florida
Forum: RV General Discussion/News 11-26-2011, 06:05 PM
Replies: 60
Views: 32,902
Posted By tacchi88
You will die only if you don't finish the RV7. I...

You will die only if you don't finish the RV7. I was considering the Velocity and flew down to Sebastian to fly it. It's different. It;s stable, so is the 10. There were only 2 areas that I...
Forum: Traditional Aircraft Engines 11-24-2011, 03:41 AM
Replies: 25
Views: 14,293
Posted By tacchi88
We have mogas with E10, and have noticed only...

We have mogas with E10, and have noticed only improvement in plug life, both fuel and oil reduction, on two airplanes, with certified and experimental engine, 1200 cumulatively. No vapor lock nor...
Forum: Fuel Injection Systems 11-15-2011, 05:00 AM
Replies: 16
Views: 8,784
Posted By tacchi88
The reality is that a carburator will make a...

The reality is that a carburator will make a little more power than FI, but only under the strictest conditions (on a test bed), which will never be seen in an airplane or even in your car.
FI is not...
Forum: RV Ongoing Maintenance Issues 11-13-2011, 08:38 PM
Replies: 29
Views: 61,951
Posted By tacchi88
15/50

I'm a little mixed up about "15/50 not being recommended". At the top of Lycoming's list of lubricants is 15/50. I started using it when it was first introduced, in the mid 80s and at the same...
Forum: Electronic Ignition Systems 11-03-2008, 07:52 PM
Replies: 3
Views: 1,387
Posted By tacchi88
Cable

Have one. What's your problem? E: tacchi88@bellsaouth.net
TT
RV10
N968TP
Forum: Traditional Aircraft Engines 07-07-2008, 05:35 PM
Replies: 10
Views: 13,637
Posted By tacchi88
MMO

Some tine ago, I helped a friend with a Pietenpol Aircamper powered by a Corvair. He called to find out if I had any idea as to why the engine (that has set for more than a year after a major OH...
Forum: RV-10 06-08-2008, 06:50 PM
Replies: 7
Views: 1,911
Posted By tacchi88
Shipping

Mike,
I had contemplated picking my kits from Van's, but after shopping around for a truck. time traveling, and motels, it was not cost effective.
There was also the insureance of the kits. Shipped...
Forum: Traditional Aircraft Engines 06-06-2008, 10:49 PM
Replies: 52
Views: 42,684
Posted By tacchi88
Evidence

Not sure if this would be of any interest, but in the late 70s when lead was on it's way out, we need to run an engine on our dynomometer. The engine was a 750CC two stroker racing engine (actually...
Forum: RV General Discussion/News 06-06-2008, 09:42 PM
Replies: 7
Views: 2,832
Posted By tacchi88
West epoxy

There are lots of boats built with West, and at least 3 homebuilts on our field glued with it. So far they have not drpped out of the sky. What can be said.
West has an excellent publication on the...
Forum: Traditional Aircraft Engines 06-05-2008, 05:26 PM
Replies: 52
Views: 42,684
Posted By tacchi88
4hrs

Paul,
Indeed 4 hrs may not be much at all but the alky has been here for some time with the cut rate stations and the majors for about 5 months, depending on area.
We have yet to encounter any...
Forum: Traditional Aircraft Engines 06-04-2008, 09:35 PM
Replies: 52
Views: 42,684
Posted By tacchi88
With or without

We already have 10% in most of Florida, and so far, no issues. We did 4 hrs. hop scotching last Saturday, the engine didn't seem to care. No noticeable change in consumption or performance.
TT
RV10
Forum: Traditional Aircraft Engines 06-03-2008, 04:46 PM
Replies: 52
Views: 42,684
Posted By tacchi88
Wives tale

Frank,
In 29 years in aviation, I've heard the "old Wives tale" that mogas will cause vapor lock. At altitude. 14.800 feet is considered by many as vapor lock territory, yet there have been autos...
Forum: Traditional Aircraft Engines 06-03-2008, 07:29 AM
Replies: 52
Views: 42,684
Posted By tacchi88
Mogas

For years, mogas user have enjoyed added reliability with mogas, and like the auto industry, the absence of lead improved engine life.
We have used it since it was approved, and in the case of 4...
Forum: RV General Discussion/News 05-14-2008, 05:35 AM
Replies: 6
Views: 1,656
Posted By tacchi88
Fuel tanks

Check with West Epoxy. They have an excellent publication on just that subject, Epoxy is the way to go.
TT
RV10
Forum: Electronic Ignition Systems 05-09-2008, 07:18 PM
Replies: 3
Views: 2,059
Posted By tacchi88
Mogas and LASAR

Mike.
At the time I was ready to sell the Arrow, my fuel consumption averaged 9gph with LASAR. before average was 10 to 11. At altitude with LASAR as low as 8 gph, and crusing at published top...
Forum: Electronic Ignition Systems 05-08-2008, 06:31 PM
Replies: 3
Views: 2,059
Posted By tacchi88
LASAR

I logged 900 hrs on my Arrow before selling it to a friend to buy my RV10.
It was not a problem running at 2300 rpms, but not much point to in at lower altitudes. Above 10K, it appeared to develop...
Forum: Electronic Ignition Systems 05-08-2008, 05:18 AM
Replies: 3
Views: 1,972
Posted By tacchi88
Noise

Have you tried switching brands? On our Rotax (912S) we did away with the NGKs are replaced them with Auto Lites. Noise was an issue, and still is, but reduced. The plugs were changed due to poor...
Forum: RV-10 04-28-2008, 05:57 PM
Replies: 2
Views: 2,417
Posted By tacchi88
IO540 J

As long as it is a straight valve and the FI mounted on the sump bottom, don't see why not. Mine is a B4B5 with FI.
TT
RV10
N968TP
Forum: RV-10 03-25-2008, 12:01 PM
Replies: 8
Views: 1,575
Posted By tacchi88
Cost

Cost of operating the RV10 will definetely be higher than the 7, Consider weight alone, not to mention engine size. There ain't no free lunches.
But consider operating say a 182C or a Saratoga, the...
Forum: Florida (North) 01-27-2008, 04:33 PM
Replies: 6
Views: 2,373
Posted By tacchi88
RV10 Jax

Chief,
I'm building an RV10 in Jax, near JAX north side. C-904-614-3163. There's another one in Yulee. Come see us.
TT
RV10 N986TP
Forum: RV-10 01-25-2008, 05:21 PM
Replies: 69
Views: 47,675
Posted By tacchi88
Comparisons

Willaim,
If you are installing a 360 Conti or a 390 Lycoming, it's your choice to do so. But this chat like any other, is full of information to draw from, and after all, is that not their purpose,...
Forum: RV-10 01-23-2008, 06:22 AM
Replies: 69
Views: 47,675
Posted By tacchi88
C0mparisons

I don't think we're comparing an RV10 to a C182 (which BTW I fly) The gross weight climb is still significant, as is it's ceiling. Given engine with comperable technology, the 540 in an RV10 would...
Forum: RV-10 01-21-2008, 08:25 PM
Replies: 69
Views: 47,675
Posted By tacchi88
Big engine vs, smaller engines

Old addage in racing "the only substitute for power is cubic inches, and the only substitute for cubic inches is cubic money" Enter yet another addage, performance with regards to weight per cubic...
Forum: RV-10 01-02-2008, 04:50 PM
Replies: 8
Views: 2,405
Posted By tacchi88
D4A5

Will,
I doubt that running the D4B5 on mogas would be much of an issue. It's basically a 6 cylinder IO 360, that shares the same barrels and compression.
Originally the IO360 B1E 180 hp, 8.5:1 used...
Forum: RV-10 01-02-2008, 08:16 AM
Replies: 8
Views: 2,405
Posted By tacchi88
B2B5

Hi William,
The 235 spins slowest of all those series, in addition to the lower compression. Since the crankshaft, camshaft, are capable of spinning faster, I chose to do just that. It also...
Forum: RV-10 12-30-2007, 05:00 PM
Replies: 8
Views: 2,405
Posted By tacchi88
Which 540

I built a B2B5. Added provision for C/S prop, FI, and LASAR. Keeping low compression (7.5:1) as well.
TT
RV10
N968TP
Forum: Traditional Aircraft Engines 12-20-2007, 07:37 PM
Replies: 19
Views: 4,768
Posted By tacchi88
RS, Had LASAR on my Arrow for more than 900 hrs...

RS,
Had LASAR on my Arrow for more than 900 hrs and never a hard start, as does my RV10. But since you are carburated, starting after pumping rather than priming is dangerous. Our carbs are of the...
Forum: RV Ongoing Maintenance Issues 12-20-2007, 06:56 PM
Replies: 22
Views: 15,267
Posted By tacchi88
Remove pro seal

High grade paint remover works well. Use plastic scrapers. Final removal with scotch pads. Wash thouroughly after removal. El Dorado Chemicals also carries a removal liquid specifically for pro...
Forum: RV-10 09-19-2007, 07:53 PM
Replies: 17
Views: 3,440
Posted By tacchi88
Have steam gauges on my -10. If I can figure out...

Have steam gauges on my -10. If I can figure out how to post pix I wll. No vacuum, all electric.
TT
RV10 N968TP
Forum: RV-10 08-22-2007, 09:10 PM
Replies: 7
Views: 1,924
Posted By tacchi88
Mine is IFR and using steam gauges. No vac, all...

Mine is IFR and using steam gauges. No vac, all electric. All antenas are conventional. Will be flying soon, and from the looks of things, it should be an excellent IFR platform, and most likely...
Forum: RV-10 03-07-2007, 09:29 PM
Replies: 4
Views: 1,587
Posted By tacchi88
LASAR dual probes

LASAR Dual point "K" probe, M5340-02, dual point "J" probe, M5340-03. Be sure when mounting that shielding is protected, and probe fits properly in cylinder head.
TT
RV10. N968TP
Forum: RV-10 11-19-2006, 08:48 PM
Replies: 2
Views: 2,556
Posted By tacchi88
T540

The dual magneto may be a problem in clearing the upper portion of the motor mount, In addition that they are high maintenence, and no after market igniton will fit Lycomings with dual mags (two in...
Forum: RV-10 11-19-2006, 08:32 PM
Replies: 2
Views: 2,556
Posted By tacchi88
T540

Van requires a straight valve 540, I couln't find the "T" version in my info, but if it has a horizontal FI, it may not be possible to use in the RV10 due to the nose gear/motormount. Straight...
Forum: RV-12/RV-12iS 11-11-2006, 08:38 PM
Replies: 19
Views: 4,531
Posted By tacchi88
Choices

Two friends are building Zenith 601. To date, wing skins had to be replaced. "Matched holes didn't match. Both ACs, with wings finished, have mis-matched wash out. The guys have been told that...
Forum: RV Ongoing Maintenance Issues 08-23-2006, 06:34 AM
Replies: 17
Views: 3,035
Posted By tacchi88
Wicks

I've been using Wicks before AC Spruce bought out Alexander in GA., now the south's AC arm. I've always had excellent service, excpet for the last recent order. they quickly rectified the error,...
Forum: RV General Discussion/News 08-23-2006, 06:24 AM
Replies: 9
Views: 1,566
Posted By tacchi88
Engine

Found a core from an air boater, knowing full well what I would be getting into. It was cheap. Rebuilding the engine, with new ECI culinders, and a host of other new parts, and a few small internal...
Forum: Traditional Aircraft Engines 08-05-2006, 06:46 AM
Replies: 9
Views: 2,281
Posted By tacchi88
Polishing and porting

Read this thread with much interest, but the only mention of the use of instrumentation is the entry of the flow bench. I, too agree that Continentals, and especially Lycoming are pretty poor. ...
Forum: RV General Discussion/News 08-05-2006, 06:01 AM
Replies: 9
Views: 1,612
Posted By tacchi88
Low Vacuun

You might entertain a gauge rather than a warning light. The gauge will warn you, visually of any impending failures far before they may occur. The gauge will display, in conjunction with your...
Forum: Traditional Aircraft Engines 07-19-2006, 06:54 PM
Replies: 3
Views: 1,770
Posted By tacchi88
Roughness

Mr. Jim,
Had a similar experience with a C172 with O320. It had more than one issue, the major one was the caburator. The throttle plate body was so badly worn, the shaft moved nearly 1/16" up and...
Forum: RV General Discussion/News 06-23-2006, 07:10 AM
Replies: 26
Views: 4,879
Posted By tacchi88
Primer

We've been using 7220 as well as other self etching primer in rattle cans for more than 10 years, with no ill efects and with more than ample protection. The 7220 seems to be the better of the...
Forum: RV-12/RV-12iS 06-02-2006, 06:54 PM
Replies: 60
Views: 9,750
Posted By tacchi88
Rotax

To continue previous posting, the 912S pushed the "dirty" Searey at 75 to 85 mph at cruise. Recently we corrected one of its many: little quirks, and removed the aileron activating cables and...
Forum: RV-12/RV-12iS 06-02-2006, 06:17 PM
Replies: 60
Views: 9,750
Posted By tacchi88
Rotax 912S

We have a Searey amphip powerd by an R-912S (100 hp). The Searey is a"diry" aircraft by all descriptions. It has pontoons with multiple bracing. Retracting gear that retracks in the the wind...
Forum: Traditional Aircraft Engines 05-19-2006, 04:44 PM
Replies: 22
Views: 4,041
Posted By tacchi88
Fi

After owning an FI equiped AV, the thought of a mixer, was apauling, so FI it was. I purchased the Silver Hawk FI, and Van's pump kit. After all was said and done, I should have purchased it from...
Forum: Traditional Aircraft Engines 05-16-2006, 08:57 PM
Replies: 6
Views: 1,852
Posted By tacchi88
Lasar

I believe you have some erronious information. The non CHT LASAR is indeed available for certified AC, and nowhere does Unison market an "Experimental only" LASAR. As to the CHT information, it is...
Forum: Traditional Aircraft Engines 05-14-2006, 07:43 PM
Replies: 6
Views: 1,852
Posted By tacchi88
Lasar

Had 900+ hrs. with LASAR on my Arrow when sold. It had the temperature probe, and the more information the computer can absorb, the better LASAR is able to perform. Without the probe, timing...
Forum: Traditional Aircraft Engines 05-11-2006, 10:05 PM
Replies: 4
Views: 2,010
Posted By tacchi88
Runout

Min. to max. run out allowed for Lycoming is .002. Maximum serviceable .005. If the engine had a prop strike, with Lycoming, in certified AC is a mandatory teardown. Rule may differ with a bit...
Forum: Traditional Aircraft Engines 05-02-2006, 07:40 PM
Replies: 9
Views: 3,086
Posted By tacchi88
Fi

You didn't mention fuel pressure. FIs should have at least 15psi. If not seeing that much pressure with both engine pump and/or boost pump, the system may be cavitating, hence bubles. Rarely do...
Forum: Traditional Aircraft Engines 05-01-2006, 05:54 PM
Replies: 9
Views: 3,086
Posted By tacchi88
Fi

Fuel divider diaphram may be worn, check all fuel line connections. Check fuel strainer screen at fuel inlet. Be sure you have sufficient fuel pressure, and correct size injector nozzle assemblies...
Forum: RV Ongoing Maintenance Issues 05-01-2006, 05:41 PM
Replies: 6
Views: 1,979
Posted By tacchi88
Vac pumps

Dry vac pumps can be diagnosed easily if equiped with a gauge (mechanical). Assuming the regulator is properly set, vacuum indication should be at normal range at a fast idle (1000 to 1200 rpm). ...
Forum: RV General Discussion/News 04-24-2006, 05:51 PM
Replies: 9
Views: 1,701
Posted By tacchi88
Oil cooler

We use a Mocal oil cooler for a Searey amphib. (Rotax 912S) It is smaller in size for the cooling capacity of an equivalent AC cooler. It has more than 300 hrs to date, and had exibited no adverse...
Forum: RV Ongoing Maintenance Issues 04-24-2006, 05:40 PM
Replies: 11
Views: 2,971
Posted By tacchi88
Timing Box

Had LASAR on my Arrow for some 900Hrs. Never experienced a problen except for gouging the temperature probe (about 600hrs, my fault). Before selling it,I tried mogas, and the results were...
Forum: Traditional Aircraft Engines 04-21-2006, 06:50 PM
Replies: 3
Views: 1,605
Posted By tacchi88
Sender

Try Westach. Several to choose from, and the unit is self energizing requiring no outside power source. They can also add "power curves" required for you particular installation.
T88
Forum: Traditional Aircraft Engines 03-31-2006, 07:20 AM
Replies: 20
Views: 5,118
Posted By tacchi88
George

George,
I know damned well what I'm talking about, but for your info, Lycoming uses straight cut gears (if you understand the term), bore size and clearance have little to do with how much clearance...
Forum: RV General Discussion/News 03-29-2006, 06:13 PM
Replies: 14
Views: 3,952
Posted By tacchi88
Servo

Had problems with the pitch servo arm as well as the mounting bracket supplied by TT. Vans provided a much nicer bracket, so I used it instead. Still the arm length was a problem. A conversation...
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