ok im changing the timing chain to a pre smog timing set i already have everything out rad,waterpump,fan, now im to the crank pully and timing cover and i have never done this before so i thought i would get some advice/tips or yall could point me to another thread i seached but had no luck. anyways just to make sure im doing this right i set the motor at tdc on the compression stroke and if i pull the valvecover the valves should be closed. now heres the thing how do i get the crank pully off with out turning the crank? is it the smaller bolts that i take out of the crank pully and not the big nut in the middle? sorry guys i know this is a stupid Q i just would rather ask and do it right the first time.

 

well i took the smaller bolts off and the crank pully came off so what the trick to getting the harmonic balancer off with out turning the motor or should i just take it off then put the bolt back in then set it at tdc again?

 

You need a puller. You have to take off the bolt in the center of the harmonic balancer. Take the washe off it thread the bolt back in half a dozen turns Attach the puller with bolts to the holes that held the pulleys on. Tighten the puller bolt against the balancer bolt & pull the balancer. The crank will turn but just set the balancer on the crank & turn it back. The alignment you need to worry about is the Cam & Crank gear when installing the chain.Hope this helps

 

thanks for the info but i cant break the big bolt loose witch way is this bolt threaded? my problem is the balancer keeps turnin as i try to break the bolt loose.

 

An impact gun helps here.
The bolt has a regular thread, so you want to turn it counter-clockwise to remove it.

 

If it has the outside weight,I put a 2*4 up against it to stop the motor from turning. Tighty-righty;lefty-loosey

 

well i called my uncle today and he told me how to get it off. he told me to put the breaker bar on the bolt and use the frame to brace it and BUMP the starter and bam worked great. well anyways i was doin the swap because i thought this truck had a smog chain so i wanted more power, well i got the cover off tonight and what do you know it already has a doubleroller chain on it and the dots are lined up with the teeth so im thinkin dang that was all for nuthing and i was cleaning everything up getting ready to put it all back together and i find the the chain has a broke link on the back side and one of the chain rollers is about to fall off so now im thinking wow its a good thing i did all this and found this chain because im hard on my truck sometimes and i just got a set of mt et streets. i wonder what would of happned if that chain broke lol

 

now i cant get the spacer off the shaft what gives? im not mad its just that i have never done this before and dont have any kind of book or somebody lookin over me watching and telling me what to do. so how do i get this space off, this is about a 1975 460 so does not have the funny shaped spacer/balancer

 

Spacer should slide off the front of the shaft. Make sure the woodruff key (little half moon shaped key that fits in slot) for the balancer is not in. Don't loose that woodruff key it what lines up the balancer! That's probably hold you up.

If the engine is still in the truck you may have to crawl underneath to see the slot where the key is.

 

If he's @ TDC #1, as he should be, then the groove is right at the top.

 

no i took the key out and no the groove is not on top its on the bottom but the dots on the gears are lined up but that doesnt really matrer much right now because i cant get the spacer off.

 

Have you tried something like PB Blaster?

Can you pull the gear, and sleeve off together, even just to get it to budge?

 

yes i have been spraying it down for the past 2 days it just wont move im thinking im gonna have to put some heat to it i cant think of anything else, but im not in a hurry to get it back together i know what happens when i rush things. has anybody used some kind of puller on these spacers?

 

WWHHHHHOOOOOOOO HHHHHOOOOOOOOO i got it off ok if anybody has the same problem i did go get a 3 jaw pully puller and the reason mine wouldnt come off somebody painted the crank shaft under the spacer lol. thanks for yalls help.