Blown Cylinder Gasket?

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Blown Cylinder Gasket?

Postby h82goslo » Sat Nov 06, 2010 5:11 pm

Commin home from Harrah the beetle started losing power and back firing with loud exhaust leak noise thats not related to the exhaust sound like a cylinder gasket to you VW gurus? Idles fines back fires when reving it up.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Sat Nov 06, 2010 7:22 pm

Backfiring on decel? or all the time?

what do you mean by a cylinder gasket?
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Re: Blown Cylinder Gasket?

Postby h82goslo » Sat Nov 06, 2010 8:42 pm

acceleration not on Delcine.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Sun Nov 07, 2010 1:10 am

thats not good. ive not had that problem yet
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Re: Blown Cylinder Gasket?

Postby h82goslo » Sun Nov 07, 2010 9:30 am

I figure either a blown cylinder gasket or cracked jug. No biggie. Ill get it fixed!
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Re: Blown Cylinder Gasket?

Postby vdubjim » Sun Nov 07, 2010 11:23 am

There is no cylinder gasket.

Nahh a cracked jug i doubt. Check the ignition system, make sure its all good. Check your carb jets arent blocked or dirty.
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Re: Blown Cylinder Gasket?

Postby h82goslo » Sun Nov 07, 2010 12:56 pm

hmmm Im leanin toward valve problems then.. The compression leak sound has me baffled. Im gonna take the valve cover off and look.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Mon Nov 08, 2010 5:20 pm

compression leak? :)
before you said exhaust leak....

a loose head can sound like an exhaust leak.
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Re: Blown Cylinder Gasket?

Postby h82goslo » Mon Nov 08, 2010 5:47 pm

Sorry sounds like an"exhaust leak" but louder. A loose head like stretched stud?
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Re: Blown Cylinder Gasket?

Postby vdubjim » Mon Nov 08, 2010 6:50 pm

i wouldnt start jumping the gun, just start checking stuff :)
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Re: Blown Cylinder Gasket?

Postby h82goslo » Mon Nov 08, 2010 7:54 pm

Man I took of the valve cover and visually inspected rocker arms they were all tight. Didn't check stud though. Ill try that tomorrow maybe.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Mon Nov 08, 2010 9:04 pm

check the bolts on the studs for the heads itself.
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Re: Blown Cylinder Gasket?

Postby h82goslo » Mon Nov 08, 2010 10:15 pm

Jim appreciate your help man. Thank you.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Mon Nov 08, 2010 10:54 pm

its a t4 but it 'looks' similar to t1 for our purposes.
Image
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Re: Blown Cylinder Gasket?

Postby h82goslo » Sun Nov 14, 2010 3:10 pm

I believe I burnt a piston ehhh #3 maybe. Jeez. Guess a winter build is in order!
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Re: Blown Cylinder Gasket?

Postby vdubjim » Sun Nov 14, 2010 3:16 pm

what leads you to that?
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Re: Blown Cylinder Gasket?

Postby h82goslo » Sun Nov 14, 2010 7:59 pm

Blow by coming out of the oil filler found eliminated all other possible problems. I think that the timing was off and I was using cheap gas in a 14:1 compression engine. So I just figure.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Sun Nov 14, 2010 9:23 pm

ahh i had an engine i tore apart that had extreme blow by.
took it apart and #3 was half melted to the rings!
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Re: Blown Cylinder Gasket?

Postby gimpy60 » Mon Nov 15, 2010 8:35 am

I don't think 14:1 compression makes for a good streetable engine, but then what do I know? Run a quick compression check or a leakdown test, you'll know real quick what you fried. JP
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Re: Blown Cylinder Gasket?

Postby h82goslo » Mon Nov 15, 2010 5:27 pm

I didnt think so either but, I didnt build it and I dont know the streetable limits of an aircooled engine. Domestic V8s all day. I'm gonna do some research on it. In the meantime found a nicely built 1800cc for a song thats gonna go in it.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Mon Nov 15, 2010 7:41 pm

There is a reason it is a song, and im sure its not an 1800.
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Re: Blown Cylinder Gasket?

Postby h82goslo » Mon Nov 15, 2010 9:25 pm

Ohhhh you sceptical Vw person. Yes many a person has been taken advantage of yet, I just happen to know this fellow. I am sure its an 1836 er something like that. Always gotta call my BS huh? I also happen to know where another 1836ish Bernnie Begman engine for a good deal but, not a song. I can buy the whole baja its in for 2500.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Mon Nov 15, 2010 10:32 pm

Well seen too many good deals in the area that really arent, so im ALWAYS skeptical :)

Just get the motor, or is that the one with the bad head? Usually used motors from bajas or buggys arent the best bet cause they are beat.
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Re: Blown Cylinder Gasket?

Postby h82goslo » Mon Nov 15, 2010 11:23 pm

2 different ones! The Bernnie engine has a bad head.
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Re: Blown Cylinder Gasket?

Postby vdubjim » Tue Nov 16, 2010 8:35 am

ahh!
try to just get the engine.
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Re: Blown Cylinder Gasket?

Postby h82goslo » Thu Mar 10, 2011 9:41 pm

Well months later I finally tore it down and 1 of my heads has a hole burnt through it! Yay! New heads are hear. Getting them bored out monday and hopefully running next week!
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Re: Blown Cylinder Gasket?

Postby gimpy60 » Fri Mar 11, 2011 6:49 am

Not stretched, pulled. do a compression or leakdown, you will know right quick....JP
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Re: Blown Cylinder Gasket?

Postby h82goslo » Sun Mar 20, 2011 9:54 pm

It lives!!!! Oh it lives!!!!!! I am so stoked! I cruised a little today.
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