Thread: Sr20de not starting after fitting s3 cams(HELP)

Yes i did take your picture as i thought is was the best from what i have before,and thanks for chiming in,i guess the chain will still be a little slack due to the tensioner not getting any oil when cranking ??

http://www.sr20forum.com/gallery/data/500/CamPulley_resize.JPG

this is very important.
if your counting teeth (not links),then at tdc, looking from the rhf guard at the same horizontal height as the top of the head with the rocker cover off, you should count 5 teeth,21 teeth,9 teeth. as per this diagram.

Thanks thats also helpful,i compare with mine in the morning !

Whats the chance of bent vavles ??

Good if you weren't at TDC when you pulled the OEM cams out, and put the new ones in and cranked it over and over.

Very low if you simply just skipped a tooth or two, but like we were saying the SR20 motor usually starts up when that happens, just runs poorly.

Ok,i was at TDC before i pulled OEM cams,i just cant see how i can be out on the timing looking at my pics again,all looks right.

Ok i got 5 teeth and 8 instead of 9 from the sprockets to the head,also the tensioner is not taking up slack like it should be,why ??

are you positive? the ninth tooth is (slightly) below parallel on the exhaust side (as per diagram). if this is true,you should have 5,22,8. if your positive then you need to skip a tooth back.

if you've got 5,21,? at tdc, the links are right. its that simple.

this may be a stupid question,but after installing the new tensioner you did "unhook" it so it's pressing against the chain now?

Yes i did unhook it,but i still have this slack even after turning it over by hand many times,it so slack its just skipping teeth on the spockets,so i have to do the timing again tomorrow as its out by 1 tooth again now LOL after hand cranking it.

Any reason why the tensioner will not lock against the chain,it will rest against it but not lock it self when the chain is rotating !

Slack shown !


CHAIN SLACK 2013-03-29 14.41.40 | Flickr - Photo Sharing!

Thanks.

a bit of slack is normal enough, just take it easy when your winding it over.

you could consider using the old tensioner if it concerns you.see if it's the same.

I have try both and it to slack,as the chain skipped teeth on the spockets when turning over by hand,resulting in out of timing !