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Quote:
Originally Posted by camgrinder View Post
I like your solution to the pump drive issue Bill. I wonder if drilling the holes a little bigger for a larger diameter pin is worthwhile?
I thought about doing that. Drilling out to 6mm or 8mm would be better than 5mm.
I also considered tapping the existing 5mm holes to take a short M6 round head bolt, but the end of the cams were quite hard and my HSS taps wouldn't even look at it. I didn't want to risk breaking off a tap or a drill, so I settled for 5mm.
Their strength isn't an issue, but in the very long term, there may be more likelihood of wear between the pins and the drive pin on the pump shaft because of the smaller contact area.

Considering the application, I am sure the 5mm pins will outlast me!
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Bill
1988 Carrera - 3.6 engine (with ITBs, COPs, MS3X) and a whole set of turbo body panels waiting in the attic.
Day job ... www.sspowdercoat.com.au
Memories: '68 912, '72 911T, '80 911SC, '84 911, '85 930, '86 930, '87 911
Old 10-30-2009, 04:21 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #21 (permalink)
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wow great info here
where can I purchase 5mm rool pins?
Thanks
Old 10-30-2009, 07:15 PM
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Quote:
Originally Posted by ertech View Post
wow great info here
where can I purchase 5mm rool pins?
Thanks
Just google ROLL PINS and you'll come up with lots of suppliers.
Typically, most shops that sell a reasonable range of bolts will sell them.
You need 5mm dia x 25mm long.
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Bill
1988 Carrera - 3.6 engine (with ITBs, COPs, MS3X) and a whole set of turbo body panels waiting in the attic.
Day job ... www.sspowdercoat.com.au
Memories: '68 912, '72 911T, '80 911SC, '84 911, '85 930, '86 930, '87 911
Old 10-31-2009, 05:17 AM
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Wouldn't it be better to use solid dowels instead of roll pins, which are hollow?
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Paul B.
'91 964 Turbo
Port matched, SC cams, K27/K29 turbo, Roush Performance custom headers w/Tial MV-S dual wastegates, Rarlyl8 muffler, LWFW, GT2 clutch & PP, BL wur, factory RS shifter, RS mounts, FVD timing mod, Big Reds, - 210 lb
Old 10-31-2009, 07:19 AM
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Quote:
Originally Posted by 911nut View Post
Wouldn't it be better to use solid dowels instead of roll pins, which are hollow?
No. They are more likely to work loose and the hollow pins are heaps strong enough.
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Bill
1988 Carrera - 3.6 engine (with ITBs, COPs, MS3X) and a whole set of turbo body panels waiting in the attic.
Day job ... www.sspowdercoat.com.au
Memories: '68 912, '72 911T, '80 911SC, '84 911, '85 930, '86 930, '87 911
Old 10-31-2009, 04:39 PM
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Turbo powa!
1977 911s. it's cool
Old 09-29-2011, 08:57 AM
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Gimpy:

Are the cams sitting between the K27 7200 and the DWUR?

Cole
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Cole - 80 930 "The Old Sled"
Mods: TurboKraft Custom IC, 934 Headers, GSX 61, Zork, Port Work, SC Cams, Air Mod Fuel Dist Relocated, Water Meth Injection, BL WUR, MSD 6530, Greddy EBC, Synapse Bov, Short 2nd & 3rd with 8:37 R&P, Wevo Shifter, Coupling, and Mounts, MTX-L SSI-4, Big Brakes, Rebel Coilovers, Bilstein Sports.
Old 09-29-2011, 12:11 PM
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Quote:
Originally Posted by cole930 View Post
Gimpy:

Are the cams sitting between the K27 7200 and the DWUR?

Cole
I have found yours on line below between Port Work and Air Mod Fuel Dist Relocated
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Roland

930 Turbo '81 Too many modifications to list
Old 09-29-2011, 11:05 PM
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