SR Timing chain

[kylaris]

According to the FSM, the IN cam should be @ 10 and EX cam @ 12.
then match the mating mark to the chain.
I don't have the mating mark on the chain for EX.
It wasn't there when I opened it, so I followed the http://www.frsport.com/_t_35.html and counted 10 chain links.
and what you know, there is a lot of slack on the timing chain.

Is the chain streched about 2 links? don't think that was possible.
Should I rotate the IN cam and EX cam apart to get the chain to tension?

http://img503.imageshack.us/img503/5734/camposiki2.jpg


thanks,

[kylaris]

I got the chain and cam position and with chain tensioned.
But when I hand cranked the engine couple times, the chain was off again.

Look at the pics.

---Aligned.
http://img516.imageshack.us/img516/4365/camposi02vy3.jpg
---WTF!!!!
http://img187.imageshack.us/img187/5332/camposi01nq9.jpg

[daryl337]

that looks correct to me, keep rotating the cams so they are tight and make sure you are on TDC, then all of the slack should be on the tensioner side of the chain, so after you put the tensioner on it will take the slack out of the cams.

To verify, instead of counting links, count pins. You should be 20 pins apart.

[steve shadows]

the pics you guys posted dont look right. There should be two dark colorled links that match up with the dots on the sprocket.

Or you can count 20 pins between the dark one and the other one to insure you havent jumped a link. there is also a yellow mark on the crankshaft 2nd from the left in, this is also a TDC mark. Should line up with the Pin on the timing cover.

[daryl337]

I was just going through the old posts and came across this, I dont know if you are still stuck on it since there hasnt been any reply, so I am just posting to clarify. Sorry to revive a dead thread, but I figured it is better to get the information out there than potentially leave you in the dark.

In truth, the colored links are reference points... and if you cant find them, they arent absolutely necessary as long as you have the proper pin count in between the cams, and in between the crank sprocket, you should be fine. take your cover off and start counting! If you have a question about the pin counts, snag a copy of the FSM.

[steve shadows]

I was just going through the old posts and came across this, I dont know if you are still stuck on it since there hasnt been any reply, so I am just posting to clarify. Sorry to revive a dead thread, but I figured it is better to get the information out there than potentially leave you in the dark.

In truth, the colored links are reference points... and if you cant find them, they arent absolutely necessary as long as you have the proper pin count in between the cams, and in between the crank sprocket, you should be fine. take your cover off and start counting! If you have a question about the pin counts, snag a copy of the FSM.


...yeah but for 99% of nissan owners you should have the links lined up, and if you pulling the damn timing cover off, go replace the timing chain with one that has the links and line it up right so your life is faster and easier when your doing tear down diagnosis in the future.

[daryl337]

I concur, but this poor bugger said he couldnt find the colored links in his original thread, so I was just trying to tell him that if he wants to do it properly, take the thing apart instead of guessing. :)

[steve shadows]

true, Its funny I offer this kind of timing service for like 80 bucks.

but people would rather take their fukcing engine apart in their driveway, give up on the car a month later, and sell it for parts.

...low balling to the point of sale of vehicle its amazing really.

[daryl337]

LOL... yeah I would have no problem doing cam timing on an sr.. it isnt terribly hard...