89Formulaws6

iTrader: (52)

i got a double roller timing chain and just a ported ls6 oil pump now i cant get the crank pulley back on far enough

Deeavi

iTrader: (16)

How do you know it is not on far enough? It normally looks like it is sticking out a good bit, even when it is seated properly.

89Formulaws6

iTrader: (52)

cause the seal isnt around the pulley, i'll get a pic its on the smaller part of they pulley, you know how it steps up in size

THENASCAR

iTrader: (19)

well the balancers require a little help to go on like from an impact or a balancer installer. and deeavi is right it does appear to stick out a bit even when on correctly. might want to look at a stock one for reference. a timing chain change shouldnt affect the crank pulley as long as it still fits behind the timing cover.

89Formulaws6

iTrader: (52)

i helped it on with a hammer till i could thread the bolt in enough to not strip it, i got a 2 footbreaker bar on it and it wont turn

rpmauto

iTrader: (14)

hammer=not good idea

Deeavi

iTrader: (16)

You have obviously got an obstruction! I had an old style small block chevy do that to me once. The balancer had a bad spot in it and it just peeled back as I pressed it on the crank. It got to a point where it just stopped. Had to pull it back off and file down the bad spot.

Pull it back off and check everything out. There has to be something on the crank or in the balancer.

vsellens

maby this will help
Use the J 41665 "ballancer installer" in order to install the balancer, Install the used crankshaft balancer bolt.
Tighten
Tighten the crankshaft balancer bolt to 330 N·m (240 lb ft).

Remove the used crankshaft balancer bolt
The nose of the crankshaft should be recessed 2.40-4.48 mm (0.094-0.176 in) into the balancer bore
Install the NEW crankshaft balancer bolt.
Tighten

Tighten the crankshaft balancer bolt a first pass to 50 N·m (37 lb ft).
Tighten the crankshaft balancer bolt a second pass to 140 degrees using the

Red99TA

iTrader: (11)

I used a little propane torch once to reinstall a stock pulley. I just heated up the center ring really well making sure it was equally heated along the circumference of the inner ring and it slid on like butter.

barnat

iTrader: (59)

This guy beat me to it or a torch, better yet! Use alittle anti size on the crank and soon as you get the pully on, hose down the pully really quick so as not to transfer all that heat to the front of crank & seal. Antiseaze is just so when cooled it doesnt freez to the crank !

LSJM1

iTrader: (15)

propane works great just heat it around the hole slides on like butter no need to put anti-seize or hose it your not going to get it that hot!

89Formulaws6

iTrader: (52)

forgot to post but i got it, it had like the tiniest little lip you could barley feel, used a file and some light oil and it went on like butter

tording99Z28

iTrader: (3)

Put the crank pulley in the oven on 300 degrees for a few minutes, it will expand and basically slide right on the crank with no pressure whatsoever. Done this on several LS1's and mustangs and never had a problem.

RoDan

be careful though, I read somewhere that some of the underdrive pulley's are not machine properly for the use of a double roller! Make sure you have one that has been machined properly!

RoDan

It is probably just the fact it will not slide onto the crank snout itself, but keep this in mind:

https://ls1tech.com/forums/showthrea...+pulley+roller

wzup1000

iTrader: (17)

Do I need to pre-heat the oven???