Cat c15 Sdp rebuild help

You can use a good 2 part epoxy or I have heard of guys using JB weld. Fill the pitting/erosion in and sand/file it smooth. As per Cat, see attached

 

I wouldnt be to worried bout that. The new water grommets (orange in color) glue pretty well when they get hot. If you end up getting block decked they can cut the block and put inserts in for the water ports as well.

 

What he said ^^^^^^^

 

Update: cleaning the deck real good as suggested made a huge difference with measuring..... duh.

Incase of a cracked flange, I pulled the liners and cleaned and measure the living crap out of everything. Got a precision straight edge.... and not a ruler.... and it all looked great so I used the sled guage and the deck is insanely even minus water jacket grooves. Not even out more than 1 thou end to end or at any given point.

But right in the same spot as I noticed the bad spot on my head gasket, this pic shows what the flange was sitting on. Some parts of the same hole are even and others out 1 thou but this spot is 10 thou and visible with the naked eye!

One other hole was out 5 thou in a spot too.


If you look close, you can see the fire ring has a crack in it.... that is the exact spot where the low spot is.

Glad I've found the problem, now to fix it.

 

That there can be fixed with a counter bore cut and shim. To get it level. I would recommend NOT REUSE ING your headbolts. Get new or get a set of arp head bolts. Who ever you have to cut counterbore make dang sure they know what they are doing ! Get a bottle of loctite 5923 gasket dressing and spread on deck of block before you lay the tin gasket down. Be very careful and spread it on thin. That will keep from water and oil seaplane later. It is the same stuff that cat recommends using. You can get it from napa.

 

The guy I'll have to it has been solely a engine builder for 20 year, everyone around here seems to recommend him so should be alright. I am hoping the dip isn't too wide, it hate to see a warped deck past the shim.

Gonna buy brand new head bolts and spacer plate for sure! I'm buying new liner, rings, camshaft.... etc etc.... Not half assing anything here! Sending the head bolts away for a cryogenic freezing treatment as well.

 

This wasn't prepped all the way for measuring but can show the liner marks.

 

I also forgot to mention, the top filler band ring on that liner was burned away where the low spot was. Possible point of entry for combustion into coolant.

I noticed that my head has been grooved into enough that I can feel it with my finger nails (have not measured yet)... not sure if these heads can be machined down at all or if I'm looking at a new head.

 

I wouldn't piss around. Cut all six holes.
When cut and stainless shims are added to get perfect liner hight it ends up being a lot stronger and more resistant to sunken liners again. Doing one hole is fine on a patch job but I do all 6 if I'm keeping the truck.

 

DITTO^^^^