GolfGTIforum.co.uk

Model specific boards => Golf mk4 => Topic started by: Wazzzer on 18 April 2012, 20:24

Title: cracked manifold symptoms?
Post by: Wazzzer on 18 April 2012, 20:24

I'm getting a pulsing sound that I can only describe as an exhaust leak under load at the mo and I can't work out where it's coming from...

What would be the symptoms of a cracked manifold? I'm struggling to replicate it as I don't really wat to get under the car while someone is revving the nuts off it on axle stands but it might come to it lol

Title: Re: cracked manifold symptoms?
Post by: Chris#101 on 18 April 2012, 20:27

Take the heat shield off thats attached to the rocker cover, opens the turbo area  up nicely, plenty of room to fit your hands around the area without actually touching it  :wink:

*Edit* this is providing youve got a fmic and ditched the standard 'hotside' intercooler piping

Title: Re: cracked manifold symptoms?
Post by: Wazzzer on 18 April 2012, 20:31

nah the twinpass coolers retain all the standard pipework down that way.

I'll pull as much as I can out of there at some point, either that or I'll take it out to West Wellow Racing and get DH to stick it up on the ramps while I stick some load on it lol

Title: Re: cracked manifold symptoms?
Post by: Toby on 18 April 2012, 23:21

Would a smoke test works?

Title: Re: cracked manifold symptoms?
Post by: Dave_IOW on 19 April 2012, 17:01

Not exhaust side?

Title: Re: cracked manifold symptoms?
Post by: Dave_IOW on 19 April 2012, 17:02

And I seem to remember you had an uprated one to go on anyway?  :huh:

Title: Re: cracked manifold symptoms?
Post by: jonrandom on 19 April 2012, 17:49

Like chris101 said if you can clear some space around it to get your hand in there you can feel the gases blowing out, just had problems with mine with trying to find where its leaking from and did it that way.

Quote from: Dave_IOW on 19 April 2012, 17:02

And I seem to remember you had an uprated one to go on anyway?  :huh:

motavation to fit the uprated one!

Title: Re: cracked manifold symptoms?
Post by: Dave_IOW on 19 April 2012, 18:52

Quote from: jonrandom on 19 April 2012, 17:49

Quote from: Dave_IOW on 19 April 2012, 17:02

And I seem to remember you had an uprated one to go on anyway?  :huh:

motavation to fit the uprated one!

My point entirely, hoping this isnt the new one though  :sad:

If you want mate, I can get it pressure tested for cracks if you need it?

Title: Re: cracked manifold symptoms?
Post by: Wazzzer on 19 April 2012, 21:16

can you pressure test my new one?  :kiss:

Title: Re: cracked manifold symptoms?
Post by: Wayne on 19 April 2012, 21:35

Cracked manifolds tend to make a ticking noise tbh.

Title: Re: cracked manifold symptoms?
Post by: Dave_IOW on 19 April 2012, 22:58

Quote from: Wazzzer on 19 April 2012, 21:16

can you pressure test my new one?  :kiss:

Yes mate, ill pick it up when i grab ARB if you still have it  :kiss:

Title: Re: cracked manifold symptoms?
Post by: Wazzzer on 20 April 2012, 07:15

oooh ARB is in the skip at work, I'll fish it out lol