8V71 oil cooler
 

8V71 oil cooler

Started by bevans6, February 06, 2011, 10:50:27 AM

Previous topic - Next topic

bevans6

Is it considered good form, when rebuilding an 8V71, to replace the oil cooler, or to clean it and reuse it?  Can they be tested?  do they fatigue?

Thanks, Brian
1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
Allison MT-647
Tatamagouche, Nova Scotia

artvonne

  It is not recommended to clean them, if they need cleaning send them out to a shop that specialises. Most any airport should know of a place. If you DIY its likely you will loosen up debris and turn it lose later into your engine. That said, it depends on the direction of flow and whats downstream. If the oil flows from the cooler directly into a full flow oil filter, as long as it dont bypass you might be safe. If does not flow directly into a full flow filter I wouldnt do it.

lostagain

Clean it and reuse it. IIRC, there is a cleaning procedure in the manual. IMHO, it's not like your 8V71 is powering the space shuttle, so why not use it? Unless it is obviously cracked or rotten.

JC
JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

luvrbus

Clean it and air test around 100lbs  Art is 1/2 right DD does not want you to clean if you have had a bearing failure do you have the bundle type or single on the side of the engine

good luck
Life is short drink the good wine first

bevans6

It's a single on the side of the engine, and there was no bearing failure, just swapping it over to the new engine.  it's extremely clean and looks fine, just an unknown age.

Brian
1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
Allison MT-647
Tatamagouche, Nova Scotia