Finally found out what happened to the motor

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Sep 27, 2007 | 12:10 PM

#16

CO_VR4

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From: Colorado

Quote:

Originally Posted by barneyb

DSMs were also known for having the filter unscrew or come off. My pet theory is that Mitsu engines can put out enough oil pressure to bulge the filter and lift the seal off of its mating surface. I always install my oil filters tighter than recommended and only once had a problem. That time I had only hand tightened the filter and it leaked.

A number of high HP DSM 4g63 users would put a clamp around the oil filter after installation and safety wire it so it would not rotate until they wanted to remove it. $5.00 is cheap insurance to save a motor rebuild...

Sep 27, 2007 | 01:23 PM

#17

HOSTILE_EVO

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Joined: Nov 2006

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From: Tampa, Florida

O-Ringed block. sickness!

Sep 27, 2007 | 07:02 PM

#18

whitey4d

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From: Harpers Ferry,WV

Quote:

Originally Posted by barneyb

Back before Chrysler could afford an engine line their minivans had Mitsu engines. My brother-in-law had one of these and every time he'd come by he'd oil up my driveway. So, I'd reach under and screw the filter back tight. The following week I'd do the same thing again. Amazingly this van went over 100k and never had engine trouble.

DSMs were also known for having the filter unscrew or come off. My pet theory is that Mitsu engines can put out enough oil pressure to bulge the filter and lift the seal off of its mating surface. I always install my oil filters tighter than recommended and only once had a problem. That time I had only hand tightened the filter and it leaked.

Ive had the oil filter start to back off ony one time and it was on my current DSM. I blamed it on the built head, poly mounts, and removed balance shafts. You also have to becare full with the 91-99 cars that have the liquid oil cooler that is crushable when over tightened. I have the 90 housing with a Setrab external cooler.