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Timing belt up grade
Posted: Wed Mar 19, 2008 11:11 pm
by Hambo
Can the wider 18 vvt belt be used in a strat swap with the narrower non vvt belt?
Cam pulleys,water pump,tenshner all have space for the wider belt,but crank shaft pulley width and
over all belt lenth are the unknow.
Re: Timing belt up grade
Posted: Thu Mar 20, 2008 12:02 am
by DDtB
If only we knew a mechanic ..... surely they'd know!!!

Re: Timing belt up grade
Posted: Thu Mar 20, 2008 12:12 am
by steve_weegie
The bottom crank shaft pulley is the same for all K series so it will be fine
Not sure on belt length, but I do know that the VVC uses a manual tensioner so it may be different....
/non mechanic faction/
Re: Timing belt up grade
Posted: Thu Mar 20, 2008 12:20 am
by Hambo
There is niver a TV reper man when you need one,Just sum bobgy sales man with a help line number £1.50 per min

Re: Timing belt up grade
Posted: Thu Mar 20, 2008 12:29 am
by steve_weegie
Hambo, you should get a number like that - you'd be quids in the next time im working on the car

Re: Timing belt up grade
Posted: Thu Mar 20, 2008 2:05 pm
by Rich H
Get one and have a look, if it doesnt fit flog it to the next VVC belt change DIYer
Even better get to your local friendly parts place and compare them.

Re: Timing belt up grade
Posted: Thu Mar 20, 2008 11:52 pm
by roadboy
Original VVC belt is actually narrower than the non-VVC belt and a different length. The later VVC belts are wider (26mm instead of 23mm) but still a different length.
Actually all this talk of VVC and non-VVC is confusing as the only difference in belts is the tensioner. Early non-VVC engines had the manual tensioner with the narrower belt and all VVCs use the manual tensioner and same belt. The later non-VVC engines had an automatic tensioner with the wider (26mm) belt.
HTH
Dan@JPS
Re: Timing belt up grade
Posted: Fri Mar 21, 2008 11:29 pm
by Hambo
Just removed belt from non my vvt and fited a old wider vvt one.
Same number,pitch of teeth and all timeing marks line up

Anay thots apart from DO NOT START IT

Re: Timing belt up grade
Posted: Sat Mar 22, 2008 3:44 am
by Scottd
roadboy wrote:Original VVC belt is actually narrower than the non-VVC belt and a different length. The later VVC belts are wider (26mm instead of 23mm) but still a different length.
Actually all this talk of VVC and non-VVC is confusing as the only difference in belts is the tensioner. Early non-VVC engines had the manual tensioner with the narrower belt and all VVCs use the manual tensioner and same belt. The later non-VVC engines had an automatic tensioner with the wider (26mm) belt.
HTH
Dan@JPS
Ah!! That'll be how I managed to buy the wrong (non-VVC) belt from Elise parts then (who IIRC neglected to mention there may be a difference)!

Re: Timing belt up grade
Posted: Sat Mar 22, 2008 4:19 am
by steve_weegie
Hambo wrote:Just removed belt from non my vvt and fited a old wider vvt one.
Same number,pitch of teeth and all timeing marks line up

Anay thots apart from DO NOT START IT

Hambo, you must have a manual belt tensioner then

If all the marks line up, from bitter experience, I'd reccomend turning the bottom pulley a couple of times and rechecking everything including the belt tension
Oh and DO NOT START IT...... at least until you've triple checked eveything

Re: Timing belt up grade
Posted: Sat Mar 22, 2008 10:06 pm
by Hambo
Tipex no tool box shood be with out it

Re: Timing belt up grade
Posted: Sat Mar 22, 2008 10:35 pm
by steve_weegie
Hambo wrote:Tipex no tool box shood be with out it

Used it for marking my head bolts - its great

Re: Timing belt up grade
Posted: Sat Mar 22, 2008 11:33 pm
by Hambo
Thay do it TOLUENE free now dus not stik or smeal as good as the old stuf
Looking up part numbers for Power grip timing belts as Partco cude not cross refrenc it to day

Re: Timing belt up grade
Posted: Sat Mar 22, 2008 11:44 pm
by steve_weegie
Get some thinners for the tippex - that still smells the same
I got my Gates kit at Pentland Components, including the tensioner for about £35 AND they had it in stock. They're in Edinburgh though, so might not be convenient for you....
Re: Timing belt up grade
Posted: Sun Mar 23, 2008 10:16 am
by roadboy
Auto tensioner belt - 5497XS
Manual tensioner belt - 5238XS
HTH
Dan@JPS