P38 Vibes

Littelwill · Jan 1, 2015

Ok so been chasing a vibration down for a while now and I know there are loads of posts on this but no one ever gets back about it blar blar blar....

So Ive checked engine mounts and replaced gear box mounts the vibration starts when the cars warm and on tick over... Ok but if i put a trolly jack under the engine and lift it slightly and the vibe went what am i missing here is it actually a mount that's gone?

W

Datatek · Jan 1, 2015

They all seem to vibrate a bit at idle. You could try adjusting the idle speed with diagnostics.

Littelwill · Jan 1, 2015

Hiya Happy New Year. This is quite loud now and it does it when im slowing down too... If i push on the toque convertor it goes away as well... Any further thoughts?

Datatek · Jan 1, 2015

Littelwill said:
Hiya Happy New Year. This is quite loud now and it does it when im slowing down too... If i push on the toque convertor it goes away as well... Any further thoughts?

How can you push on the torque convertor?

Littelwill · Jan 1, 2015

Sorry sorry, I ment transfer box

if i push on it the vibration noise stops..

Datatek · Jan 1, 2015

Littelwill said:
Sorry sorry, I ment transfer box if i push on it the vibration noise stops..

Back to the exhaust as the favourite then, maybe at the rear where it passes the wheel well.

Littelwill · Jan 1, 2015

Ill look into that but if i hold the exhaust while its running to stop it moving it still makes the noise

Datatek · Jan 1, 2015

Littelwill said:
Ill look into that but if i hold the exhaust while its running to stop it moving it still makes the noise

Well, there has to be some metal to metal contact somewhere that is relieved by you pushing on the transfer box. Holding the exhaust may not provide the movement necessary to clear the problem.

Littelwill · Jan 1, 2015

But from what I've discribed it's not flex plate or anything like that?

Datatek · Jan 1, 2015

Littelwill said:
But from what I've discribed it's not flex plate or anything like that?

I can't see how pushing on the transfer box could possibly affect the flex plate, Wammers may know more.

jamesmartin · Jan 1, 2015

Datatek said:
I can't see how pushing on the transfer box could possibly affect the flex plate, Wammers may know more.

it cant ,it would be more like mounts

Littelwill · Jan 1, 2015

Right so transmission mounts maybe. They have been replaced already tho...

mutsnutz · Jan 1, 2015

what about worn exhaust mounts

Littelwill · Jan 1, 2015

Hiya Mutz! Not a bad idea but there doesn't seem to be any movement at all of the exhaust. And I can't see it catching on anything

landy8088109 · Jan 1, 2015

I have a rattle/ vibration on mine couldn't figure it out, turns out it was the centre pipe exhaust bar that attaches to the rubber exhaust mount, at idle was vibrating just enough to tap the chassis and annoy the crap out of me

Littelwill · Jan 1, 2015

Thanks for that I'll look into it tomorrow. It only does it when the engine is warm tho...

mutsnutz · Jan 2, 2015

Littelwill said:
Thanks for that I'll look into it tomorrow. It only does it when the engine is warm tho...

that's when the rubber is warm and stretchy

Littelwill · Jan 2, 2015

Ok so was laid under the truck for a good hour today and checked all exhaust mounts they all seem fine. Would it be worth replacing the gear box mounts again? The rubber seems very hard.

matt1987 · Jan 2, 2015

Can't you get it running and be underneath of it and use touch and the screwdriver in the ear to try and find the noise? That's how I determine wheel bearing or any whine noise I get on mine or at work.

plumbfisher · Jan 2, 2015

"...and the screwdriver in the ear..."

P38 Vibes

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