Optimizer flywheel bolt question

[great white]

I been reading anpdf on the optimizer. Says that the crank flywheel bolts need sealant or they will leak. It also says if they're torqued over 65 ft/lbs they will distort the seal area and the rear main will leak.

to the guys who have installed optimizers, any truth to that?

 

[Acesneights1]

Never heard of that on a normal 6.5 Can't see why they'd be different. I used blue loctite on mine. That sounds weird. If the seal was redesigned I would think the oilpan might be different. Where did you get this info ?

 

[3500GMC]

X2

IFAIK the bolt holes into the crank are blind. ..and no need to over torque.

 

[iamdave0887]

like they said. When i put my flywheel on i just used blue lock-tite and torque to 60 ft lbs. I know there's 2 different length bolts. The manual flywheel bolts are longer due to the thickness of the flywheel versus how thin the flexplate is for an automatic.

I've got 12 point shallow head bolts from Napa in my K-5. My spare engine which was a factory manual had the regular GM 6 point head bolts in it. Not sure what the difference is there save for manufacturer.

 

[great white]

http://www.enginebuildermag.com/Article/1458/the_optimizer_6500.aspx

Read the crankshaft paragraph.

I checked the engine on the hoist this am, the holes are blind.

I'm not sure where they're getting their info from....

 

[robzombie4551]

I installed mine like everyone above with my orignal oil pan [had to modify it though]. No leaks or troubles after 4000 miles so far.

 

[great white]

I installed mine like everyone above with my orignal oil pan [had to modify it though]. No leaks or troubles after 4000 miles so far.

Luckily, my optimizer came with the correct truck pan.

Probably has something to do with ordering through GM......