1994 Mazda B4000 Q&A

1994 Mazda B4000 Question: changing my oil pump...and i have a chatter

i have a lifted single cab b 4000, do i absolutely have to pull the motor to change my oil pump? i already put thicker oil in and changed the sending unit....also i have a loud chatter at about 3k RPMs, lifters maybe? -
Answer 1
My book shows 6.9 to 7.1 hours depending on the transmission and says " R and I engine where necessary " Better do a mechanical oil pressure test before trying to change the oil pump, A shop would install a mechanical pressure gauge to test for proper pressure -
Comment 1
Yep, very involed job. make sure the diag is correct before performing this repair. it may be more than just the oil pump. Roy how are you?? Roy -
Comment 2
Great How are you doing? Just picked up a Saginaw trans to put in the GTO It came with a 4speed So we're putting it back to stock. -