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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: bevans6 on August 10, 2011, 08:37:43 AM

Title: water feed from oil cooler to block
Post by: bevans6 on August 10, 2011, 08:37:43 AM
It's been 8 months since I took the oil cooler off the old engine and I can't remember exactly how it sealed to the block.   What I have is the standard single core cooler assembly that has a outlet that reaches up towards the hole in the block.  It seems to seal with a fat rubber O-ring that is compressed by a cover with 4 bolts.  I wondered if there should be anything else, like a gasket on the block face or some sort of flare attachment or anything?  Any goo recommended?

thanks, Brian
Title: Re: water feed from oil cooler to block
Post by: bevans6 on August 10, 2011, 12:19:43 PM
Bump - surely someone has replaced an oil cooler on an 8V71 in the recent enough past to remember how it seals the water connection to the block! 

clifford, I know you know!

brian
Title: Re: water feed from oil cooler to block
Post by: babell2 on August 10, 2011, 01:11:25 PM
Brian
I found a maint manual for the 8V71 Oil system description starts on 561 Hope it helps.

Brice
Title: Re: water feed from oil cooler to block
Post by: luvrbus on August 10, 2011, 01:15:10 PM
Remove the 4 bolts install your v seal takes a clamp that fit's between the lips on the seal install the 4 bolts tightened the clamp and you are through unless you have the old style it takes a o ring on the block check your other engine it should have the new style

good luck
Title: Re: water feed from oil cooler to block
Post by: bevans6 on August 10, 2011, 02:25:12 PM
Thanks, Clifford, this is why I am confused.  The new engine had the new style with the V-seal inside of a T-band clamp and a spigot on the block to connect to the water neck on the oil cooler.  I ditched that big oil cooler, it was a dual type designed to cool hydraulic fluid for a pump or something like that, and I am putting my old style single coil cooler on.  It seems to just have an  thick o-ring and a flange, and I have no fitting on the block, and my books show no fitting either.  So what I want to verify is that there is just an o-ring and a flange that squashes it against the block face and around the water neck on the oil cooler to make the seal.  Is that right for the old style setup?

Brian
Title: Re: water feed from oil cooler to block
Post by: Dreamscape on August 10, 2011, 04:10:28 PM
Wouldn't that dual cooler be good to hook up an Allison to?
Title: Re: water feed from oil cooler to block
Post by: bevans6 on August 10, 2011, 05:38:39 PM
I asked about that at the time, and apparently it was a cooler designed for industrial pumps.  It was huge, it was missing a bunch of important bits like the actual coolers (fork lift rash, apparently - this engine lived on various shelves for quite a while) and I don't have an Allison...

Brian