joem

I have read that the jb weld woks great, its a non stress area and only needs to stop oil splash

sootnsmoke

I hope the JB Weld works for you. However, what worries me is that the rock solid case is important as it maintains the close tolerance between cam and pump gear. If there is greater flex or torsional movement to a broken case I would hate to see further damage arise. I am sure every fracture is unique so it is hard to know which broken case will hold up and which ones won't

075point9

I hadnt thought about that before but in this case i don't see it being an issue. The gears are fastened to the "backing" part of the housing, and the break is mostly on the part that is basically a shell or ring on the outside. Kind of hard to understand I know but it looks to me like they should still have a good amount of support. Not sure how much rigidity the cover adds but that won't hurt either.
I just replaced the crank seal and put the cover back on, now it's time to reassemble and see how she runs. I'll probably wait till tomorrow to fire it up just to give the epoxy lots of time to cure. And because I'm scared...

sootnsmoke

I have my fingers crossed for you!

patdaly

FWIW, you saw mine with the top blown out, which I would judge to be less rigid than yours, and over 2 years it never moved. I thought it had because the stupid vacuum pump started to leak, so I fixed the case with an aluminum bridge, only to find that wasn't it.

Between the case and all the bolts on that timing cover, it is pretty doggone solid.

075point9

Well I done fired her up and she's running fine, no leaks that I can see. Gonna take it out on the highway and see if everything sounds and feels right.
The future looks bright!

infidel

Cummins and many others including myself quit the removing the cam method years ago.
Better way> http://www.cumminsforum.com/forum/94...ml#post2349170

whiskers

I think you'll be fine. My break was over 4 inches of the outer lip the just disintergrated. It never had a problem and the guy that bought the truck 6years ago never called to say it was a problem as he promised to do. It's strong stuff.

infidel

Problem with gluing the crack is that many times it cracks inbetween the case and block.
Can't see it or fix it without removing the cover and case.

075point9

I've put a few miles on and everything seems ok. I am jumping at the slightest sounds though. Now I'm waiting on a new set of tires and I think I'll have to buy a new washer fluid pump for $90 as I seem to have lost mine.

mtdoragary

If you remove the oil fill tube, can you seee the KDP through the opening?

patdaly

Nope, but if you remove the cover you can........

Sorry, didn't mean to be flip. I am not sure if you could put a borescope ( miniature camera ) in and see it that way.

mtdoragary

I'll try it. I don't have time to do the kdp before a 1500 mile hauling trip unless it's urgently needed. When I did it on my last three Cummins, none of them had budged yet.

infidel

Nope, the gear is too close to the cover, borescope can't get by.
Been there, done that.

patdaly

Darn, then the only other reasonably easy way I could see would be to pull the Vacuum pump assy. and look at it that way. At least it is a little less work than pulling the cover.