Strange noises

Woozy Seriously Crusin Dubber

118 posts · joined Dec 2002 · 3 Feb 2003, 1:51 pm

#24173

I have just finally put the baja's engine back together to great happines and joy 🙂 :bounce:bounce:bounce

I then had the carbie's retuned and in the process have found a bery confusing problem.

On the compression stroke (it appears to be on all 4 cyninders) there is a whooshing sound (kinda like ffffffffffft)
as though air/fuel mixture is leaking somewhere

I have been told that this is normally to od with the mating of the cylinders to the heads tho this problem is normally accompanied by a popping sound on accelleration. There is no popping sound.

If anyone has any ideas or novel solutions the would be appreciated otherwise i guess ill have to pull the engine again 🙁🙁🙁🙁🙁🙁🙁🙁🙁🙁🙁🙁

:puke:repuke:puke

Everyone needs something to belive in !
I belive i shall have a beer !

Old Dubber Wolfsburg Wizard

605 posts · joined Aug 2002 · 4 Feb 2003, 2:32 pm

#24389

Do a compression test, may show up something.
Are you hearing this noise while it's running or stopped???
If you have just rebuilt, you may be hearing blowby until the rings bed in?

And yes, the usual problem is the head surfaces not aligned.

Grahame
visit my club site at www.vwdcqinc.org.au

Bizarre Moderator The artist formerly known as blue74l

12,787 posts · joined Aug 2002 · 4 Feb 2003, 2:41 pm

#24392

If you are just turning over by hand hand i wouldnt worry too much.
If it is running.........pulled head stud?

Futue te ipsum!!!

Woozy Seriously Crusin Dubber

118 posts · joined Dec 2002 · 4 Feb 2003, 3:55 pm

#24399

The noise is while it is running.

Can not hear it when at more rev's than idle but that could just be hidded under the exhaust.

Any idea what kind of $ a compression test will cost ? (or how much is the gear to do it myself ?)

Everyone needs something to belive in !
I belive i shall have a beer !

Menangler Custom Title Time!

1,991 posts · joined Aug 2002 · 4 Feb 2003, 4:34 pm

#24404

Manifolds tight?

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Woozy Seriously Crusin Dubber

118 posts · joined Dec 2002 · 4 Feb 2003, 5:15 pm

#24410

Manifold's tight 🙂 ...

tested that already 🙂

Everyone needs something to belive in !
I belive i shall have a beer !