Getting case to split....

toddu · 03-11-2013, 11:10 AM

Is this just a time consuming process of tap, tap, tap? I've been using a hammer and a wooden block on the 4 "corners", but it shows no signs at all of any separation. I've double checked, and I've got all 22 case perimeter nuts off.

Todd

KTL · 01:12 PM

Make sure you have the nuts inside the oil cooler recess removed. The case has alignment sleeves for the rear main bearing (#1) in this location and they are typically the buggers that keep you from getting the case apart easily. Also there's a lone nut inside the chain port on the left (cyls 1-2-3) side of the case.

Otherwise yes it's often a patience exercise of tapping to get the halves to separate. Often helps to use VERY light pressure/leverage from a spreader type of tool to help coax the case apart. A good place to do this is where there is a lot of meat in the case area, like on the top where the breather cover goes. Can also do it at the area near the fan housing support area. Again, don't go crazy with the leverage. Any tool you use should be a light finger twisting amount of effort. Any more than that and you're risking breakage. Do NOT leverage it anywhere that is a critical sealing area or a fragile/unsupported area by surrounding case material.

toddu · 03-11-2013, 11:44 AM

Oh, f-me!! Didn't catch the 2 cap nuts in the oil cooler recess. Guess that would make splitting difficult :-).

I'll remove those later and try again.

Thanks!!!

Todd

KTL · 03-11-2013, 01:13 PM

Glad to help

Been there done that. First time I removed a cam & rocker housing, I was whacking that sucker for a long time with a rubber mallet. Just wouldn't let go of the heads. Finally discovered a nut I had forgotten........

toddu · 03-11-2013, 07:10 PM

Surprisingly easy once all nuts are off ;-)

Thanks Kevin!! Got the case split in 5 minutes after remaining fasteners were removed.

Todd