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Author Topic: 3.2 cam belt bottom pulley not adjustable.  (Read 2164 times)

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feeutfo

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3.2 cam belt bottom pulley not adjustable.
« on: 10 October 2008, 17:44:25 »

got a locking kit from ians and a 30mil cranked ring spanner. Got the cam belt kit and, as ians rightly says, the bottom pulley is not adjustable!

 What happens if i put it all back together and the cam wheels 4 and then 3 need adjusting? 2 and 1 no problem i can see how all that should work, once 4and3 are correct.
I presume the thinking is that once all is locked and in the correct position, and the correct belt fitted, then there is no need to adjust the bottom guide as it all MUST be in the correct position? Is this correct...?
I am concerned that when we come to tension the belt finally. That it will need adjustment on 4 and 3, of which there would appear to be none.
  

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JamesV6CDX

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #1 on: 10 October 2008, 17:45:33 »

The position of the bottom one is set, it won't need any adjusting. Then just adjust banks 1 and 2 :y
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feeutfo

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #2 on: 10 October 2008, 17:59:45 »

bloody hell that was quick, 1minute! Thats what i was hoping you would say, thankyou james, i love you.  :-*
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Andy B

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #3 on: 10 October 2008, 18:01:09 »

Quote
.... i love you.  :-*

Steady!!!  ;D  ;D  ;D
« Last Edit: 10 October 2008, 18:01:21 by Andy_B »
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ians

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #4 on: 10 October 2008, 18:32:47 »

Does that mean you have to put the belt on in an anticlockwise direction from crank pulley through the bottom roller and up to 3/4 - to ensure no slack on the non-adjustable side?
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feeutfo

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #5 on: 10 October 2008, 21:42:17 »

Quote
Does that mean you have to put the belt on in an anticlockwise direction from crank pulley through the bottom roller and up to 3/4 - to ensure no slack on the non-adjustable side?

Yes, well thats my plan anyway. Only one adjustable roller, at the top, to pull 2 and then 1 into line. 4and3 are still cock on to the marks. 2 and 1 are half a tooth out (late). Begs the question why not make top roller non adjustable too? I suppose the chances of the belt running that distance and still being spot on are slim after a couple of thousand miles? But then whos going to check before its due? I suppose i might now.  The fact the left bank is late would maybe imply wear on the roller?...or poorly adjusted to start with, full vx dealer history by the way.

Apologies for my earlier emotional outburst, i had a bit of a panic, followed by much... er... relief, things are looking simpler than i had thought.
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HerefordElite

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #6 on: 10 October 2008, 22:55:24 »

watch the DVD again Chris ;) :y
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Kevin Wood

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #7 on: 10 October 2008, 22:57:47 »

It's easier if you turn the crank back from TDC by about a tooth (10 degrees officially, I think) to give you some slack on the right hand belt run up to cams 3 and 4 then feed the belt round the crank pulley, over the cam pulleys and round to the tensioner. Then turn the crank back to tdc to give you enough slack to go over the tensioner and slip the belt on.

.. and if you've got a VX belt with no markings on it's a PITA because you'll find it's a tooth out and you have to start again. >:(

Kevin
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feeutfo

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #8 on: 10 October 2008, 23:23:49 »

got this far,cam wheels and crank locked in position ready to take old belt off in the morning, impressed with kit so far.

see the bits of belt on the w pump, normal?
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feeutfo

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #9 on: 10 October 2008, 23:30:26 »

ps also busted cable tray on the left, think maybe its snapped an aux belt in the past. Guess which bolt hole had a sheared bolt in it? yep, the one the crank tool bolts into.
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feeutfo

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #10 on: 10 October 2008, 23:37:45 »



also does the belt look like its had something rubbing on it?
looking at the top run. just noticed looking at pics, :-/
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NickA

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #11 on: 11 October 2008, 14:48:56 »

Quote
Quote
Does that mean you have to put the belt on in an anticlockwise direction from crank pulley through the bottom roller and up to 3/4 - to ensure no slack on the non-adjustable side?

Yes, well thats my plan anyway. Only one adjustable roller, at the top, to pull 2 and then 1 into line. 4and3 are still cock on to the marks. 2 and 1 are half a tooth out (late).

So is that one of the key difference between fitting belt to a facelift v earlier? Belt is fitted anti-clockwise due to the none adjustable roller?

I've watched the DVD and am planning to tackle mine in a week or so. Any other differences from the DVD for facelift's ?


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ians

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #12 on: 11 October 2008, 16:35:07 »

Nick, I think its a difference of 3.2/2.6's over 3.0/2.5 - but as yours is a 2.6 I think you will find that yours is the non adjustable type.

Make sure you have the correct kit for your engine number.
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feeutfo

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #13 on: 11 October 2008, 17:14:49 »

Quote
Nick, I think its a difference of 3.2/2.6's over 3.0/2.5 - but as yours is a 2.6 I think you will find that yours is the non adjustable type.

Make sure you have the correct kit for your engine number.
this link might help, it did me,  :y
http://www.omegaowners.com/forum/YaBB.pl?num=1223578419
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feeutfo

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Re: 3.2 cam belt bottom pulley not adjustable.
« Reply #14 on: 11 October 2008, 18:09:41 »

right, just to re assure, this was in the end, a doddle...All things being relative of course. if youve never done a cam belt before ( i have) then you may not think the same way.

The locking kit(Thanks again Ians) takes all the stress out of the job( i did not have a Locking kit when i did my 2.5 and did not know any better,in my pre forum days)
The non adjutable bottom tensioner is, i found, alot easier than the 2.5 i had previosly. It cant be fitted incorrectly, my only concerne was fitting the belt to toothed wheels locked into a tensioned position. no need to worry, i put the belt onto cam wheels 3 4 down onto the bottom guide pulley and then onto the crank then up onto the tensioner to hold it, then feeling the belt on the crank noticeing that the belt is not sitting in the teeth correctly, i then pulled the belt along its run, clokwise in my case, by grabbing the belt by hand left of the tensioner and leaning/pushing down on it(ie if the belt slipped, which it wouldnt, i would have punched the alternator) the belt litteraly just popped on to the teeth on the crank wheel. then just fit the rest of the belt and adjust cams 1 2 to take out the slack, tension, do a rev or 2 to check and go from there.

With belt fitted i found 1 and 2 where about 2 mill out, adjusted checked all spot on but more importantly 3 and 4 where perfectly in line  from the off, could not fault it.

So to sum up, its easier, in my experience...
A. with the locking kit, obviusly.
B with a non adjustable bottom tensioner.

In the end the main agro was taking the Plenum and intakes off to get at it all, short plenum stays on.

i can see why they have cam belt parties now, its a pleasure to do with a locking kit.

Thankyou all for your help.the car now runs noticeably smoother and with better tick over. Special mentions to IANS, JAMES V6 CDX, ALEXANDJEN and ANDYB  :y :y :y :y :y :y :y
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