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-   -   Another intake question (https://vansairforce.net/community/showthread.php?t=79949)

Toobuilder 03-10-2014 08:30 PM

Just thinking out loud...
 
I've been thinking about the silicone hoses most often seen in turbo plumbing on cars. The stuff comes in all kinds of sizes (and colors)... Anybody ever used them as intake tube couplers on the Lycomings? In theory, they should remain pliable longer than the rubber based stock stuff.

RV10inOz 03-11-2014 03:26 AM

Vlad.....you confirm my thoughts.

A good reason to do a GAMI lean test high and low. It shows up the leaks. ;)

Did you get some of the Superior gaskets?

devgru38 10-17-2019 12:11 PM

Hate to bump a super-old thread, but figured this was the right place to get the information listed.

Was wondering if anyone could provide any guidance in replacing these intake gaskets and couplers...

Is it as simple as:
1. Remove flange bolts & intake coupler
2. Clean gasket surfaces, replace coupler
3. Bolt back up?

Any torque values for the tube-flange-to-head fasteners?

Thanks!

Bill Boyd 10-17-2019 04:46 PM

My guidance:
 
Replace that mess with SDS Aero O-ring seal intake flanges. Ross will hook you up!
http://sdsefi.com/sdsaero.htm

devgru38 10-17-2019 05:39 PM

Quote:

Originally Posted by Bill Boyd (Post 1380497)
Replace that mess with SDS Aero O-ring seal intake flanges. Ross will hook you up!
http://sdsefi.com/sdsaero.htm

Looks like a smart design, but do need to get the plane in the air this weekend, and only have stock gaskets on hand. Still looking for installation torque if anyone has one...

Fracrat 10-17-2019 06:49 PM

Intake torque
 
Pretty sure it?s 100? lbs. info is for 0-320.

devgru38 10-17-2019 07:13 PM

Found it!

For future reference: O-320 Intake flange nut torque is 96in-lb (basically 100) per Lycoming manual.

Any other tricks/tips to get these off/on? I don't need any special tools? Just remove nuts, replace gasket, bolt back on?

Thanks!

Toobuilder 10-17-2019 07:19 PM

The intakes don't have nuts, they have bolts. The exhaust has nuts (on studs).

Remove bolts, scrape old gasket junk off, ensure tube retainers are not bowed, Install new gaskets, ensure tube is centered in retainer, tighten to spec.

Next step - buy the SDS intake kit so it's on hand when you need to replace the next cracked intake gasket (and it WILL happen).

chaskuss 10-18-2019 07:48 AM

The red Rubber intake connectors are available through Continental
 
Quote:

Originally Posted by RV10inOz (Post 765337)
snipped

If it helps the red SUPERIOR gaskets seem to last longer.

Glad you are onto these things! :)

It appears that the red high temp rubber connectors that David & Michael mentioned are available through Continental. Are used on their Titan experimental engines. You can see some photographs of them on the recent thread linked below.

http://www.vansairforce.com/communit...d.php?t=169487

The close proximity of your exhaust pipes to those rubber connectors sure isn't doing them any favor. Is there any room to possibly install a heat shield between those parts?

Charlie


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