Timing Chain & Cover Replacement
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jay4runner (03-27-2021)
#82
#83
Why the heck won't my new cam sprocket go on. It is all lined up and the little nub has gone into the slot on back of sprocket but the sprocket will not push onto the shaft. How hard should this be? Surely I shouldn't have to whack on this thing.
#85
Last edited by jay4runner; 03-29-2021 at 04:59 PM.
#86
Wacking stuff means different things to different people.
A little gentle suggestion with a small brass or aluminum hammer might be in order.
These sprockets are meant to fit somewhat tight.
A little gentle suggestion with a small brass or aluminum hammer might be in order.
These sprockets are meant to fit somewhat tight.
#87
Last edited by jay4runner; 03-29-2021 at 06:40 PM.
#88
Don't worry, I wouldn't actually hit it with anything to force it on (was kinda kidding). But it seems as per the instructions on webcrawler that you are supposed to maybe place a punch in the hole at the top of the cam and twist the cam slightly clockwise to get it on. I'm not totally sure what they are getting at there. Once i get the little nub into the notch i have tried putting some pressure one way and the other to try and get it on but no luck. Driving me nuts. I'm not dumb (honest) but this is painful - would really like to get this new chain on so I don't have to worry about it anymore.
#89
If it's a tight fit, that's a good thing. It's been going on close to four years now since I did the chain on mine. Pretty sure I used a piece of 2x4, and a hammer to gently tap it on there. Also used some Permatex Ultra Slick assembly lube too.
Last edited by snippits; 03-29-2021 at 07:41 PM.
#90
The following 2 users liked this post by wallytoo:
jay4runner (03-30-2021),
snippits (03-30-2021)
#91
I installed Cloyes 94148SHD Heavy Duty Timing Set, and the cam gear did not have all the holes for a good grip. I do remember saying to myself that I should have bought one with holes.
#92
Oh, one other thing - as per the webcrawler instructions I do not yet have the guides or tensioner installed. I trust this i correct? Actually, I saw another video (by LTE Engineering or something) on installing this sprocket. they already had the tensioner installed and to get the cam on they stuck a bar through the center cam hole and applied upward force on the sprocket while slightly rotating the crank back/forth claiming that the sprocket "walks" right up onto the shaft.
#93
i’m confused. if neither the guides nor tensioner are installed, why are you putting the chain and cam sprocket on? those get put on prior to the chain. then work the chain into place, etc. also, if you are unable to put the chain and cam sprocket in place without those installed, you might have a problem, because there should be PLENTY of slack chain available.
a picture of what you are doing might help.
a picture of what you are doing might help.
Last edited by wallytoo; 03-30-2021 at 09:54 AM.
#94
i’m confused. if neither the guides nor tensioner are installed, why are you putting the chain and cam sprocket on? those get put on prior to the chain. then work the chain into place, etc. also, if you are unable to put the chain and cam sprocket in place without those installed, you might have a problem, because there should be PLENTY of slack chain available.
a picture of what you are doing might help.
a picture of what you are doing might help.
#28 - very carefully remove cam gear and chain
#29 - remove the crank gear
#30 - install your new crank gear
#31 - install the new cam gear and chain
#32 - bolt the cam gear and distributor gear down
#33 - install the new passenger side guide
#34 - install the new drivers side guide
#35 - install the new tensioner
#95
The renowned 4crawler instructions clearly say to put the chain on and then install guides and tensioner. This is the instruction I have been following (see below). Is it a problem to put the chain on first as 4crawler suggests? The main tension that you are fighting when trying to get this sprocket on is from the drivers side chain which is relatively tight regardless of whether the tensioner is on (wouldn't you think).
#28 - very carefully remove cam gear and chain
#29 - remove the crank gear
#30 - install your new crank gear
#31 - install the new cam gear and chain
#32 - bolt the cam gear and distributor gear down
#33 - install the new passenger side guide
#34 - install the new drivers side guide
#35 - install the new tensioner
#28 - very carefully remove cam gear and chain
#29 - remove the crank gear
#30 - install your new crank gear
#31 - install the new cam gear and chain
#32 - bolt the cam gear and distributor gear down
#33 - install the new passenger side guide
#34 - install the new drivers side guide
#35 - install the new tensioner
#96
i've referenced the site many times, but not for putting on the timing chain. the FSM describes the chain installation via the assumption (from how it is written) that the guides and tensioner are installed prior to putting the chain/sprocket on. and it clearly describes rotating CCW "if the chain isn't long enough". but, what do i know? i've only done it 3 times in the last 2 years.
#97
Sorry, I do have another question. I purchased the osk made in japan timing chain kit. It came with the tc guides (also made in japan) however the are both plastic. I did order and also received a cloyes brand driver side guide that has the metal on it. So what's better, the made in japan original style or the made in china (I'm sure) metal one for the drivers side?
Last edited by jay4runner; 03-30-2021 at 04:16 PM.
#98
i've referenced the site many times, but not for putting on the timing chain. the FSM describes the chain installation via the assumption (from how it is written) that the guides and tensioner are installed prior to putting the chain/sprocket on. and it clearly describes rotating CCW "if the chain isn't long enough". but, what do i know? i've only done it 3 times in the last 2 years.
Last edited by jay4runner; 03-30-2021 at 03:34 PM.
#99
Sorry, I do have another question. I purchased the osk made in japan timing chain kit. It came with the tc guides (also made in japan) however the are both plastic. I did order and also received a clowes brand driver side guide that has the metal on it. So what's better, the made in japan original style or the made in china (I'm sure) metal one for the drivers side?
The following users liked this post:
old87yota (03-31-2021)
#100
on all three installations, once i got everything fully reinstalled, the engine started instantly on the first try.