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Author Topic: Hardest timing belts and why  (Read 4037 times)

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05omegav6

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Re: Hardest timing belts and why
« Reply #15 on: 04 May 2015, 23:41:42 »

For Audi read any VW group car with a longitudinally mounted engine...

Later V diesels are chain driven, again at the flywheel end ::)
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Webby the Bear

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Re: Hardest timing belts and why
« Reply #16 on: 05 May 2015, 19:25:04 »

I too have seen images of Audis with v engines (I thijk) where the timing gu bins is at the rear as Mark says near the bulk head.

Firstly, why?  :o

Secondly are they also engine out jobs or can the engine drop down enough? How the hell does it fit to the transmission I.e. Where's the flywheel or torque converter positioned  :-\
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BazaJT

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Re: Hardest timing belts and why
« Reply #17 on: 05 May 2015, 19:42:24 »

Last time I changed a timing belt-and the only cars I've ever done them on-was on the Mk3 pinto engine Cortina!
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05omegav6

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Re: Hardest timing belts and why
« Reply #18 on: 05 May 2015, 20:57:07 »

I too have seen images of Audis with v engines (I thijk) where the timing gu bins is at the rear as Mark says near the bulk head.

Firstly, why?  :o

Secondly are they also engine out jobs or can the engine drop down enough? How the hell does it fit to the transmission I.e. Where's the flywheel or torque converter positioned  :-\
Firstly because they're retarded, and secondly you need to split the box... ::)

They are at least chain driven...
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Webby the Bear

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Re: Hardest timing belts and why
« Reply #19 on: 06 May 2015, 17:39:24 »

ah yes rear chain is now ringing bells.  :y

are they all like that? is it just the big uns etc?
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05omegav6

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Re: Hardest timing belts and why
« Reply #20 on: 06 May 2015, 18:21:07 »

ah yes rear chain is now ringing bells.  :y

are they all like that? is it just the big uns etc?
Re read reply 15... there's a good bear ::)
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Webby the Bear

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Re: Hardest timing belts and why
« Reply #21 on: 06 May 2015, 20:05:50 »

lol soz al. got ya got ya  :y

jusdt been watching vids on audi a4's.... pretty straight forward for the 2.0 tdi

https://www.youtube.com/watch?v=oGwDYXFPKK4
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Webby the Bear

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Re: Hardest timing belts and why
« Reply #22 on: 06 May 2015, 20:26:05 »

Al, interesting how in that video he had to loosen the actual sprocket to be able to get his timing pin in.

he then states that to be set up perfectly those bolts should be bang in the middle of the small channel they live in.....yet his ends up slightly off. how could he have got that bang on> any ideas?
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Webby the Bear

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Re: Hardest timing belts and why
« Reply #23 on: 06 May 2015, 20:40:32 »

ignore that, ive answered my own question..... if he'd have started at the crak pulley which is locked in place he'd have been able to feed the belt up and manipulate the cam sprocket where they were centred and withthebelt nailed in place.

I think  :y
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Omegatoy

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Re: Hardest timing belts and why
« Reply #24 on: 06 May 2015, 21:46:28 »

vw t4 2.5tdi, 2 belts one at either end and 3 tensioners,one of which you use to fine tune the fuel timing loads of fun to do not! :y

Webby the Bear

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Re: Hardest timing belts and why
« Reply #25 on: 07 May 2015, 20:07:30 »

that sounds awful. head mech. is going to give me some more so i can just do as many as poss  :y

question....

with a DOHC....

I thought if you had crank at tdc and locked, and cams locked correctly, youd then tension it correctly ad job done....but oh no  ::) ;D

if i do this the tension side will be, well err, tensioned lol but not the 'drive' side (or the other side). head mech tried to explain how (generally speaking so dont anyone go all keyboard warrior-ish please!) you can loosen the sprockets and dial it in (like in the vid i posted) but ive got to be honest its gone over my head slightly. anyone care to elaborate?

for work though ill just keep beavering away and hopefully the understanding will come :)
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