Pump Collar?

[cactu5]

I am currently in the process of rebuilding my rb26 out of an r32. I am rebuilding it because the oil pump started playing up as they so often do.

I got the N1 pump and the pump collar. The motor looked untouched when we pulled it down. It is now getting put back together and the crank is in. The guy who is putting it back together is now telling me that there is no way that he can get the oil pump collar on. He also says that the pump is currently a perfect fit, and that I don't need the collar. My thinking is that of course it fits, but I should still need the collar. He is adamant that the collar is exactly the same dimensions as the fitting on the crank. I haven't seen it yet.

My question is, can I check my engine number to see if the block is from an r33 GTR?

And, does anyone know what might be going on?

Thanks in advance.

[mitchy_]

didnt the late 32's alright have the right sized collar's?

[Beer Baron]

post model change R32 GTRs have what is effectively an R33 GTR sized oil pump drive. If the 'flats' on the collar are the same as the flats on your crank then for sure don't fit it. Also, the collar doesn't just slip onto the crank (so I've been told, haven't done it myself). But it makes sense that you would need to machine down the old surface, then fit the collar.

what year and month was your 32 GTR made?

[cactu5]

post model change R32 GTRs have what is effectively an R33 GTR sized oil pump drive. If the 'flats' on the collar are the same as the flats on your crank then for sure don't fit it. Also, the collar doesn't just slip onto the crank (so I've been told, haven't done it myself). But it makes sense that you would need to machine down the old surface, then fit the collar.

what year and month was your 32 GTR made?

Apparently you have to heat treat the collar to fit it on, and that's fine. The problem is that it seems to be like 5mm out. It just seems like a lot to machine. The motor should be an early model r32 one (December 89), but who knows what's coming out from Japan.

[femno]

Haha yeah dude you have the machine the crank to fit the new collar ie before the crank is in

[cactu5]

Doh,

I went and had a look. You're totally right, the crank has to be machined right back, and it is obvious that it needs the new collar.

[johnnyt]

i learnt the hard way too champ:(

my engine assembler put the bastard together without getting it fitted,had to dissassemble the engine and get the crank machined.

johnny