crankshafts - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

pickle · 11th November 2005, 11:57 PM

does any one know if the crankshafts are the same in an r32 gtr and r33 gtr are the same rb26dett engine?

gtr mart · 12th November 2005, 10:24 AM

the R33 crank is different in that it has a bigger flat contact area for the oil pump drive.

On the R32 crank, the flat that the oil pump is driven from is quite small and at high rpm can sometimes slip in the oil pump drive meaning oil doesnt get pumped around your engine.

When people rebuild their R32 engines, they normally either use an R33 crank or have a sleeve / collar made up to strenghen the connection between the crank and the oil pump drive.

pickle · 12th November 2005, 11:06 AM

i have a 33 engine with big end failure and a 32 engine with a good bottom end want to swap the 32 crank into the 33 whats involved/will it fit/work?

pickle · 22nd November 2005, 09:42 PM

anyone know if this will work?

Pikey · 23rd November 2005, 01:21 PM

Yes it will work but it's not a good solution!!

SteveN · 23rd November 2005, 02:21 PM

If done properly, a crank oil pump drive collar is a perfectly good solution.

You dont need to get one made either, JUN make them.

pickle · 24th November 2005, 06:26 PM

how much is a collar

gtst lad · 26th November 2005, 01:20 PM

Quote:

Originally Posted by pickle

how much is a collar

I paid 14,091 yen plus shipping for mine.

pickle · 30th November 2005, 09:57 PM

does anyone in the uk sell them?

pickle · 7th December 2005, 10:08 PM

anyone know?

11th November 2005, 11:57 PM	#1 (permalink)
pickle GTR Register Member Join Date: Nov 2005 Posts: 27	crankshafts does any one know if the crankshafts are the same in an r32 gtr and r33 gtr are the same rb26dett engine?

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12th November 2005, 10:24 AM	#2 (permalink)
gtr mart GTR Register Member Join Date: Mar 2004 Posts: 1,637	the R33 crank is different in that it has a bigger flat contact area for the oil pump drive. On the R32 crank, the flat that the oil pump is driven from is quite small and at high rpm can sometimes slip in the oil pump drive meaning oil doesnt get pumped around your engine. When people rebuild their R32 engines, they normally either use an R33 crank or have a sleeve / collar made up to strenghen the connection between the crank and the oil pump drive.

12th November 2005, 11:06 AM	#3 (permalink)
pickle GTR Register Member Join Date: Nov 2005 Posts: 27	i have a 33 engine with big end failure and a 32 engine with a good bottom end want to swap the 32 crank into the 33 whats involved/will it fit/work?

22nd November 2005, 09:42 PM	#4 (permalink)
pickle GTR Register Member Join Date: Nov 2005 Posts: 27	anyone know if this will work?

23rd November 2005, 01:21 PM	#5 (permalink)
Pikey GTR Register Member Join Date: Feb 2004 Location: Cheltenham Posts: 4,151	Yes it will work but it's not a good solution!!

23rd November 2005, 02:21 PM	#6 (permalink)
SteveN GTR Register Member Join Date: Aug 2002 Location: Just off the M5/A40 Posts: 7,209	If done properly, a crank oil pump drive collar is a perfectly good solution. You dont need to get one made either, JUN make them.

24th November 2005, 06:26 PM	#7 (permalink)
pickle GTR Register Member Join Date: Nov 2005 Posts: 27	how much is a collar

30th November 2005, 09:57 PM	#9 (permalink)
pickle GTR Register Member Join Date: Nov 2005 Posts: 27	does anyone in the uk sell them?

7th December 2005, 10:08 PM	#10 (permalink)
pickle GTR Register Member Join Date: Nov 2005 Posts: 27	anyone know?