LS Powered Monte Build
- Thread starter OldBlue82
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OldBlue82 said:
The balancer wasn't as bad as that timing gear, but the balancer was on tighttttttt. I had a three foot pipe on a half inch drive breaker bar and I thought it would snap at any moment.
If you don't mind, let me give you some advice. MAKE SURE you have the O ring correct on the oil pump. I made that bad mistake and it cost me.
LS1GN said:
I had to brace my engine stand cause it was flexing more than I liked when i put the 3 ft bar on the balancer bolt. Pulling the balancer was easy with a good 3-jaw puller. I purchased a CTS-v pan kit and it has a new blue o-ring on the pick-up already, but I also got a green and a black o-ring with the new melling 10295 oil pump. Im thinking the blue and the green o-rings are the same but ill have to double check.
The O ring easily gets sliced when you mount the pickup tube to the bottom of the pump. I read this a few times and thought I had it under control. When I went to fire my motor I had no oil pressure. So I had to pull the motor back out of the car and pull the oil pickup tube off (after spending two days trying to do it still in the car). I ended up about two weeks behind schedule because of the stupid ten cent O ring. I had three and I picked the fattest one. I also used Vaseline on the whole thing the last time. I have a piece of O ring (shaped like a finger nail clipping) somewhere in the motor today, I never found it.
Thats brutal, Guess im going to have to be super careful once I get to this step. Lots of oil and a gentle touch I guess when its time for that :lol:
Also:
I bought an underdrive balancer just like yours and lost it on the highway a couple months later. I have another one now (same brand) - it has to go on SUPER TIGHT. The shop manual says 40 ft lbs and then 180 degrees or something.
I bought an underdrive balancer just like yours and lost it on the highway a couple months later. I have another one now (same brand) - it has to go on SUPER TIGHT. The shop manual says 40 ft lbs and then 180 degrees or something.
LS1GN said:
Gm manual says to seat the balancer using the old bolt by torquing to 240 ft/lbs. Then remove the old bolt and install the new on with an initial pass of 37 ft/lbs then an aditional 140 degrees. the instructions for the balancer say to use those specs aswell. Also says the balancer should be put in an oven or boiling water for 15 minutes prior to install. Ive read blue locktite on the threads of the bolt is a good idea.
OldBlue82 said:
yeah, 37 ft/lbs and then 140 degrees sounds right. About 90-100 degrees is all I could physically do alone - I needed a friend that night.
Really sounds like these LS motors have some PITA aspects to them which is surprising since people rave on about how easy they are to work on. Guess mainly more exotc processes than most older style motors have are a bit tricky. I know the oil pan needs to be aligned up with the rear of the block because the trans bolts to the oil pan.
Clone TIE Pilot said:
They are a bit different than the gen 1 sbc for sure. The balancer and the crank sprocket have been the only tricky things so far but not to bad. Otherwise in my opinion its pretty easy to work on and in alot of ways seems built superior to the gen 1 sbc. Both are great engines though.
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