timing belt issues

[blingsta]

hey guys.. ive put same post on tech help 2....

having got myself a 3mm decomp plate, ive put head back on, but bloody timing belt wont go on for love nor money... ive undone tensioner all the way but still no joy?? any help will be appreciated.. cheers

[Turbo-Brown]

3mm?! christ on a bike!

What sort of CR are you expecting with that dude?

Perhaps try going to your friendly local machine shop or autofactor and trawling through their catalogues for belts that are 1 tooth longer or something?

[maxfield]

The comp was 10:2:1 I think before the decomp plate was there i believe.

[blingsta]

spot on Maxfield, it should drop to 8;1 with plate on there.. Have been speaking to Ant who has advised me to take off tensioner completely and try that way.. suppose the head not being torqued down soesnt help too, but im still waiting on delivery of my non stretch bolts.. well 2moro is new day, hopefully with some luck on my side.... we'll see how it goes???

[Turbo-Brown]

Think if it's not fitting now, it's unlikely to fit when the head gasket's been squidged down by a couple of tenths of a mm, unless it's just marginal that is.

Hope it works out for you though dude, how'd you end up with a 10.2:1 CR though?

[blingsta]

by using eta bottom end and 325 head !! ive been told the belts have 127 teeth, but they also do 128 teeth belts, you reckon that maywork??

[Turbo-Brown]

gotta be worth a try!

[chu346]

by using eta bottom end and 325 head !!

are you sure that is correct? mine is using a 320i head which gives a c/r of 10.2 so I should think yours would have been lower than that. Was it an early v.high comp block or the later high comp block?

I got the later block which if I put a 325i head on would give me about 9.4 c/r.

ive been told the belts have 127 teeth, but they also do 128 teeth belts, you reckon that maywork??

The Eta's have a slightly taller block, so maybe it's the Eta belt that is longer?

[blingsta]

Hmmmm, not really sure which block was used for the coversion, im also now thinking about using a vernier pully, i believe there adjustable!! cars are nuffin but headaches!!

[blingsta]

i tried again today this time with the spring off the tensioner... belt still wont go on.... im gonna try a longer belt, can i try one from any make car or is there certain belts that wont fit??? any advice guys?

[Turbo-Brown]

You tried the 128 tooth one yet mate?

Reckon that'd be the best place to start if not

[blingsta]

naah i havent tried that yet... does anyone know which bimmas these belts come from??