setting tensioner

[Bakermgzs]

Hi all has any one done belt on zs v6
I'm doing belt at mo and have the tools aswell,I think I might have problem well after l have done the main belt,just before I tighten the cam bolts,there is a pin in the side of the tensioner you pull out to set the tension on the belt but when I go to pull out the pin its very tight and when it does come out the adjustable pully is pushing hard on the tensioner pin it compresses all way back in the housing and the the adjustable pully housing is metal on metal with the tensioner housing
Is this normal because the belts new and the tension pin will slowly come out the housing over time with stretch?????
I just can't help but think about when the is engine hot and things want to expand I thought the pin in side tensioner should be able to move freely in and out the hole when all tools are removed,thanks for ur time all

[Bakermgzs]

The tensioner

[top_man_eldo]

To me that sounds like the hydraulic tensioner has had it. When you pull the pin, the piston pops up, pushes against the tensioner which in turn pushes the tensioner into the belt.

Have you tried removing it to see if the pin is free to move?

[top_man_eldo]

If you're stuck I do have a used spare here that you're welcome to, I'll be happy with just a couple of quid for the postage.

[LozMachine]

Sounds like you havent adjusted the tensioner pulley, they arent set out of the box. There is a pdf floating around somewhere of how to do it, basically it needs set so that you can slide the small pin in and out before actually removing it.
Set pulley tension so that the pin is free
Tighten sprockets
Remove pin and tools and rotate at least 2 or 3 times by hand
Recheck tension (pin should still fit in hole) and if ok remove the pin, if not tweak the pulley tension and repeat
Think thats the right order lol
Apologies if that's what youve already done
http://www.themgzs.co.uk/vb/showthread.php?t=30124

[top_man_eldo]

That's the thread that I posted reading setting the tensioner, I'm not sure if this is his problem, as he's saying that the pulley is pushing into the hydraulic tensioner and compressing it, by the sounds of it?

[LozMachine]

That's the thread that I posted reading setting the tensioner, I'm not sure if this is his problem, as he's saying that the pulley is pushing into the hydraulic tensioner and compressing it, by the sounds of it?

Yer i know mate, i had the same problem though unfortunately i had it running before i realised something was amiss, (could hear it) , looking back i dont think i turned it over enough times to settle everything down.
http://www.themgzs.co.uk/vb/showthread.php?t=30194
Post 26
I had to reset the tensioner pulley to sort it.

[Bakermgzs]

See now I thought for a second it was maybe the hydrologic tensioner so I got another but did the same thing,I did have ago with the adjustable tensioner undoing the Allen key bolt and it did make bit difference but not alot,iv also noticed because the tensioner pin is pulled back in its housing every time I go to pull the to off the front back cam tool it moves cam so tiny but enough not to put tool back in,the back rear small belt just seem to be a tiny bit out the tool won't fit in but I have also heard this is common problem,
Well I toke day off because it's doing my Swede in so gona have another play around

[LozMachine]

When undoing the allen key bolt of the pulley are you physically turning the pulley clockwise with an allen key to release tension off the belt?

[Bakermgzs]

Iv had enough I sorted the tension out but now every time I rotate the engine by hand the belt wants to come off

[Bakermgzs]

Right I realized what's happend,basically I have had compression plates put in 1,5m thick, each head so this will explain why I couldn't get the right tension I suppose the belt is being stretchd out 3m and would also explain why belt wants to work its way off
Question is if I can find a idler pully that is 3m smaller than the standard will this give me the play I want and need??

[talkingcars]

1.5m or 1.5mm?

I'm no expert but I wouldn't have thought that 1.5mm plates would make enough difference to cause a problem.

[top_man_eldo]

As above. Quick question, did you rotate the floating inlet pulleys clockwise as you fitted the primary belt?

[Bakermgzs]

As above. Quick question, did you rotate the floating inlet pulleys clockwise as you fitted the primary belt?

Yes buddy I did indeed
It's only solution I can think why tensioner won't set properly also the belt wanting to slip off the pullys
If it was to loose the belt would just want to slip a tooth

[Bakermgzs]

Right I found out the plates are 2.2m thick each head,I tried fitting a smaller idler pully today and was so much easyer to set the tensioner the belt is still trying to slip of the cam pullys but alot slower so final resort I'm going to weld a small lip on end the cam pullys

[sneekyparrot]

Right I found out the plates are 2.2m thick each head,I tried fitting a smaller idler pully today and was so much easyer to set the tensioner the belt is still trying to slip of the cam pullys but alot slower so final resort I'm going to weld a small lip on end the cam pullys

Dean,
I think you just going to have to keep an eye on the whole setup. @4.4mm its a whole tooth thats being taken up before you even start.
As we discussed you also have to watch the tension thats being applied to the water pump.
How much smaller is the one you have now fitted?

cheers
P.

[Bakermgzs]

Dean,
I think you just going to have to keep an eye on the whole setup. @4.4mm its a whole tooth thats being taken up before you even start.
As we discussed you also have to watch the tension thats being applied to the water pump.
How much smaller is the one you have now fitted?

cheers
P.

Hi buddy so you would say it's a tooth out,sounds about right the smaller idler pully is 8m smaller so I am quite surprised it's still slipping
It has to be the plate the car was fine of 32,000miles before I had them put in
Altho the belts slipping off slowly the pressure has definitely been taken off the water pump,
After Bering supercharged I drove the car for 6months and it drove brilliantly couldn't fault it,car runner 250bhp with plates,when the belt went it destroyed the waterpump bearing which I assume was the tightness of the belt over time,my plane now is to weld lip on the cam pully time it with crank in safe position and the rear sprockets v faceing each other put everything back together and hopefully should run way did before without munching my belt