engine popping at idle.

turbo · #1 10-24-2011, 06:57 AM

i finally found the reason for my engine popping. the gaskets which connect the intake tubes to the head were brittle and falling apart. i knew a intake leak could cause this but never thought to look here. i just happen to notice a piece of gasket missing, then another one looked damaged. with a set of new gaskets in hand the fix was quick, easy and very cheap. no more popping. the engine will usually talk to you if there is a problem. you need to talk its language. the new gaskets are a orange color, not black like the damaged ones. i hope the new ones are better. the original set had 800 hrs on them.

Geico266 · #2 10-24-2011, 07:07 AM

Good catch Turbo!

Whats up with the green filter on your camera?

Did you hit the screen and cause the "Effects" options to come up and then post pictures with the green tint like I did a few weeks ago?

videobobk · #3 10-24-2011, 11:38 AM

Quote:

Originally Posted by Geico266

Good catch Turbo!

Whats up with the green filter on your camera?

Did you hit the screen and cause the "Effects" options to come up and then post pictures with the green tint like I did a few weeks ago?

Haven't you heard? We are all supposed to go green. Turbo is just using those new "green" light bulbs

Bob

turbo · #4 10-24-2011, 12:23 PM

thought you guys might like the special effect. green flash light at night.

RV10inOz · #5 10-24-2011, 01:56 PM

Interesting you had 800 hours before failure.

We had about 250 each time. For more info read here. http://www.vansairforce.com/communit...ad.php?t=77041

I see the black original ones again!! Some folk down here have found them to be less reliable, only perception but perhaps based on an element of reality.

Fred.Stucklen · #6 10-24-2011, 02:46 PM

Quote:

Originally Posted by turbo

i finally found the reason for my engine popping. the gaskets which connect the intake tubes to the head were brittle and falling apart. i knew a intake leak could cause this but never thought to look here. i just happen to notice a piece of gasket missing, then another one looked damaged. with a set of new gaskets in hand the fix was quick, easy and very cheap. no more popping. the engine will usually talk to you if there is a problem. you need to talk its language. the new gaskets are a orange color, not black like the damaged ones. i hope the new ones are better. the original set had 800 hrs on them.

Ed,

I replaced mine last summer for the same reason. Only had 600 Hrs on them, and they were falling apart....

az_gila · #7 10-24-2011, 02:48 PM

Could your clamp face not be flat? ... or is is a photo artifact?

The gasket looks more compressed in the screw area than in the middle...

turbo · #8 10-24-2011, 03:38 PM

the fact is when you pull out these black gaskets they crumble in your hand. i dont think a flat surface will fix that.

my new ones are a light orange color. orange is better this time of year. gobble gobble.

bhester · #9 10-24-2011, 09:01 PM

Might need to get a few to put of the shelf.
Part # and order info?

az_gila · #10 10-24-2011, 10:29 PM

Quote:

Originally Posted by turbo

the fact is when you pull out these black gaskets they crumble in your hand. i dont think a flat surface will fix that.
.....

An air leak past the "middle" of the gasket might be contributing to making it "crumble"....

If the clamps were over-torqued the ears at the bolt locations could get bent upwards causing the non-flat surface. It does look like that in the picture.

It's worth checking when you change gaskets.