Coolant In Oil

[LanduytG]

Can anyone tell me how coolant can get into the oil? I know the timing cover is a possiblity. We all of a sudden lost coolant today and its in the pan. Runs great and no steam out the exhaust nor bubbles in the recovery tank.

Greg

[rjschoolcraft]

Cracked block...

[ejk2352]

I vote cracked block too.

[Dvldog 8793]

Cracked block....
Check out the servey on the top of the page.
Do a search on appetite for antifreeze
My truck never had any of the old stand by symptoms due to the propeties of the new antifreeze.
Good luck.
L8r
Conley

[ 09-24-2005, 08:39 PM: Message edited by: Dvldog 8793 ]

[twaddle]

Greg,
If there is definately no white smoke or other coolant in the cylinders symptoms there is a chance that the leak is from a head gasket. It could be running down by the push rods/followers.

Remove the rocker covers, then pressurise the cooling system using a cooling system pressurising pump kit. Don't take the pressure above 15psi.
Look for signs of coolant running down into the sump.
The pressure test can be done cold, if the leak does not show let the pressure off the test pump, fire the engine up to warm it up, this can open up the leak, repressurise the system.


The next thing is drop the oil pan and check for the source of the problem.


Check the simple things first before hauling the engine out.
Good luck,

Jim Twaddle
Biggar, Scotland

[LanduytG]

Well we just changed oil in the 6.5 and filled it up with water. After a 10 miles drive we already had about a quart or better of oil missing form the recovery tank and about that much extra added to the dip stick. So this has to be a serious leak. What ever is happening its not getting into any of the cylinders. Runs and starts fine. Will start to take it apart in a day or two. I think a new Peninsular engine is in order. I should have done this is the first place instead of getting one built where I did. Would have been cheaper in the long run and less hassel.

Greg

[john8662]

What year and what block casting do you have in the truck?

If it's an earlier block design (aka 3/8" line connections) the problem is not as likely to be a cracked block.

But if it's the 506 casting with the larger line connections, then I'd go the new engine route..

Just out of curiousity, where did the current engine come from?

[LanduytG]

Its a 506 block. Does not really matter at this point where it came from. But can can say I wish I won't of gotten there for several reasons otherthan this latest trouble. Motor has had low oil pressure and sever blow by since day one. I am going to pull it this week end and look it over, but I am leaning toward a new Peninsular motor. I know it will be right.

Greg

[rjschoolcraft]

Why not go this route (http://www.thedieselpage.com/members/features/schoolcraft2.htm)?

[Barry Nave]

Greg
When you say low oil psi,what range was it in?
With the install of your By-Pass, my oil psi will show,once warmed up,20 at low rpm and back up to 40 once going.

[LanduytG]

Ron
We don't have the kind of time it takes to do this type of build up is one reason. Also if it was going to be used hard and for towing I would but its just his daily driver.

Greg

[Barry Nave]

RJ
Wonder if JK would stock a couple of these Eng. to sell as bolt in.All work done ready to install.
Would the cost be to overwhelming to stock?
also to customers?

[jspringator]

Is block cracking a problem with the new GEP block? I have been reading these boards for a while and don't remember anyone posting on a new style block crack.

[Kennedy]

Originally posted by LanduytG:
Its a 506 block.
Greg THAT is the problem...

[Spindrift]

Originally posted by LanduytG:
... but I am leaning toward a new Peninsular motor. I know it will be right.Greg Greg,
As an FYI, I am aware of a new Peninsular engine that just took a dump. Bad things do happen.

[LanduytG]

Yes any engine can take a dump. But the builder of this engine does not have a good track record. I wish I had done a little shopping but I was going by what some had to say about the builder. Only to find out afterwards that the builder has had problems. Matt at Peninsular said at SLC they had a total of $2000 in warranty repair last year. Not bad for over 200 engines going out the door.

Greg

[Dvldog 8793]

Howdy
Good luck on your ordeal.
Just my .02 -
I have about 20,000 miles on my AM General GEP long block. I haven't had so much as an oil drip. ABSOLUTLY 100% satisified. 3yr/30,000 warrenty and all new GEP engines have 20.2 compression ratio. Not the super low 18.0 but maybe it's a happier starting motor???
Anyways, it might be another option to consider.....
L8r
Conley

[LanduytG]

Well we got the engine pulled out this past Sat and today I took it apart. Cracked block on #2. Also many other details found that should have never happen after only 30K miles.

Greg

[flintspear]

Where can I find the casting no on my block?

I love my truck.

98 cc K3500. KE filter, bone stock after that.