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08-09-2011
I am not to sure on the chain exactly, i pulled it off the old motor i had bought the car from. i remember seeing that the crank and cam sprockets said "Rollermaster" on it. and its a single roller chain, and it was tight with the new tensioner i put on.
08-09-2011
Were there multiple keyways for the crank gear?
08-09-2011
IIRC there were 4 grooves like. but it only seem to fit one way. i remember the teeth were more meatier then the stock. but i think there was 1 slot bigger then the other for the keyway on the crankshaft to enter.. because i remember now we thought the sprocket was to small for the crankshaft because we had a hard time getting it to fit. but IIRC there was only 1 way of it really going
08-09-2011
i remembed the crank timing mark was set around 2 o clock when lined up
08-09-2011
i just found this diagram. if this is the sprocket i have, it looks like it goes on multiple different ways...........
08-09-2011
Come on now... That's just mean.P.s. I promise you all, my valve locks are installed correctly
08-09-2011
lol not hating towards you or anything, because i was making the same mistake, but caught it before i threw together. but im thinking this now.. im in theory thinking that my crankshaft sprocket is on 180* backwards. thus intake is opening on exhaust stroke, and exhaust opening on intake stroke? causing that cough? and of course nothing is broken inside because well, in theory just the valves are opening and closing backwards right? maybee im wrong, im not exactly sure how the engine works, but if that were the case, would i be seeing gas on the plugs?
08-09-2011
If it was 180 degrees off, your pistons would have smashed into your valves and bent them. Do a compression test to be sure.Originally Posted by Hixc
08-09-2011
i take the picture because then you know. Looks like you are going back into the timing cover.
A trick you can use is line up the crank with the original gear and then line things up with your new gear and put your old gear on after to see that it's lined up.
There's just so many different ways a guy could install the gear that it makes it confusing. Here is a rollmaster double installed for reference
08-09-2011
is there actually 2 different tick marks on the crank sprocket? 1 on the front and on the teeth itself? i remember i lined up 2 arrows. dont remember lining up any dots
08-09-2011
by looking at those pictures, i must be 2 teeth off on the crank. looks like im taking front cover off. Anyone have a writeup on the quickest way i can do this without having to pull the motor? ill post pics of my before and after
08-09-2011
The dot on the crank sprocket is not on the teeth, at least not on my car. It's at the end of the round portion of the sprocket. There is a picture in my long thread that shows it.
08-09-2011
Do it through the passenger wheel well. It will only take a couple hours or so.
08-09-2011
do i need to replace any gaskets? I really would love to be able to reuse the new gaskets i just put on for the front cover lol
08-09-2011
if you didn't rtv the crap out of both sides, and it comes off in one piece i don't see why not. if no rtv at all re use it, the car never started and got hot.
08-09-2011
You can re use the metal front gasket if there's no RTV on it. Just to let you know though, when you reinstall the front cover, put RTV on the bottom 2 inches of the front cover (both sides of the gasket), as well as on the oil pan gasket. That thing is so hard to get to seal without RTV.
08-10-2011
PUll the wheel and splash shield
DRain coolant
Pull the balancer
Pull the crank sensor and plastic shield
Pull the 13mm bolts holding the timing cover on. (if you are good, you can sneak past the idler fo the SC)
Pull cam bolt, adjust gears/chain and pray
Reverse procedure.
08-10-2011
Make sure you take a picture of the dots lining up this time so you know for sure!
08-10-2011
im going to do this friday afternoon. i will definetely take and post a picture of my dots, so i can make sure. my brothers timing chain in his 240sx just broke, so today im helping him time his 240sx with the dizzy lol. so much timing work to do this week!
08-12-2011
what size are the 3 bolts that i need to put inside the harmonic balancer puller? diameter and length? are these bolts something i can buy locally at a autoparts store? or do i have to go to the local hardware store. id rather not have to buy from ZZP because im going to be doing this today..(fixing my timing issue) the bolts i used before to do this were barely enough to work with the engine out of the car. im not sure if i have enough room to get these to fit with the engine still in the car. i wanted exact bolts for an easy removal.
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