Engine won't turn over

[taken-1995]

Have a D6N had low oil pressure, pulled down changed pump to upgraded style. Now will not turn over. Sounds like it locking up. Oil pump lined up perfectly, filled with new oil went to start and nothing.

CAT00D6NKPER00419 Serial C8N11303

 

[Dave Neubert]

have you tried turning it by hand If it had low oil pressure chances are it could of spun a main bearing

 

[Cliffy]

Perkapillar.
Still reckon cat got ripped off.

 

[Nige]

I would suggest to cut open the engine oil filter and see what you find. If you have crankshaft bearings coming apart that's where the debris will be. See this LINK for a useful "how to" video.

 

[taken-1995]

have you tried turning it by hand If it had low oil pressure chances are it could of spun a main bearing

No, we found the problem the SIS has the incorrect oil pump listed the crank shaft was hitting the base of the pump. Now for CAT to figure out which pump we need. Since the old pump was superseded to this number. Thank you for your assistance.

 

[Nige]

What Part Number of pump were you supplied with.?
374-7136 appears to be it, superceded from the former 372-8868. This is all provided the engine Serial Number is correct.

 

[Nige]

This is all provided the engine Serial Number is correct.

A thought. Double check with the data plate on the engine that the Serial Number is correct and the info ties up with what’s on the plate in the cab.

 

[chidog]

It helps to check for such things before putting things together.

 

[Welder Dave]

Perkapillar.
Still reckon cat got ripped off.

I think before they were sold Perkins were well regarded. Other manufacturers such as Isuzu used Perkins engineering and test labs for developing their own engines. I have no complaints with the AD3-152 in my MF135. Most reliable machine I have and it was made in Dec. 1964.