From bad to worse, cracked block

[rlvelin]

Upon tear-down of the engine for rebuilding I found what we all hope not find. The 2nd and 4th main webs were cracked.
http://members.isp01.net/rmvelin/engine_crack1.jpg

Also every piston but one was cracked in the recessed area and then of course there was this one with the hole.
http://members.isp01.net/rmvelin/piston_hole.jpg

I realize some of you may be looking for a good engine block as I am and I don't want to step on any toes but does anyone know where one can get a good block to use or where to start looking.

Thanks for any help.
Ryan

[rjschoolcraft]

The latest GEP blocks are the best. You can only get these by purchasing either a long block or a short block. Power Bilt (sp?) provides both. Kennedy provides long blocks. These are pricey.

I went with a new-old-stock block cast in January 2000...doesn't have the alloy change. If you go this route, I suggest splayed mains.

If you wouldn't mind, please tell us the conditions you were running under. What boost level, etc. Also, please enter your data in the crack poll if you havn't already. Thanks.

[rlvelin]

Would it still be a good idea to add the stud girdle kit to a GEP block? Also, do you have any contact information for Powerbilt, I've done a web search and haven't found anything yet.

The crack poll has been completed. The engine had 210,000 miles on it when the piston(s) went south and thus the block cracks were discovered. All the cracks are still with the main journal web areas, none have proceeded into the cylinders.

It was completely stock when I got with 188,000 miles; shortly after that the timing gears were added and the air box mods completed; gauges were added later, then the boost was adjusted for a max of 12 psi (only saw 12psi maybe 20 times) mostly it ran 6-9 psi boost. I never had any problems with overheating or coolant loss.

It was used for some towing before I got it (don't know how much or how heavy but it already had a well used gooseneck hitch in the bed) and I've towed some with it as well as hauling around a slide-in camper occasionally.

Ryan

[ 06-02-2005, 08:18 AM: Message edited by: rlvelin ]

[rjschoolcraft]

http://www.remyinc.com/reman/diesel/engines/6_5L.htm

[Cowracer]

Hey RJ~

I looked at that link. Do you know what the hell is mounted at the back of the engine in that photo?

..............V- Right there!

http://www.remyinc.com/images/general/6_5L.jpg

At the back, between the cyl heads. Some kind of coolant crossover/surge tank? Also, this engine looks like it has a mechanical lift pump too. I wonder if it some kind of marine engine...

Tim

[rjschoolcraft]

I think that's a picture of a van engine with center mounted turbo charger. If you look closely, you can see the rails of the van style intake manifold. I think what you're seeing is the aft portion of the intake manifold and the turbo down pipe. It does have a mechanical lift pump.

[Cowracer]

I'll buy that.

In the back of the passenger side head, I can just make out the outlet spigot for the turbo (i think)

Thanks!

Tim

[jspringator]

Well... had to add 3 quarts of coolant today. Oil on dipstick a little over full. I am not optimistic. I will try some of those engine stop leak tabs this week and pray.