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Join Date: Mar 2005
Location: Brisbane, Australia (Formerly: Sunnyvale, CA)
Posts: 190
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Water pump housing insert collars
My 2.7L replacement water pump, which is a Zim's rebuilt unit, has two protruding inserts or collars in two pf the bolt holes (circled). The protruding inserts/collars don't allow the pump to bolt flush to the block -- the bolt holes they line up with on the block aren't big enough to take them. The water pump I just removed doesn't have these.
What's going on? Are some blocks drilled to take these, and others aren't? Do new pumps have these, or are these only found on some rebuilds? And if your block isn't drilled for these, are you supposed to remove them?  Side view to show how far they protrude: 
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Currently 1990 944 S2, Black on Linen, 17" Turbo Twists |
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11-27-2009, 04:35 AM
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I just pull those dowels out whenever I buy reman WP from Zims.
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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11-27-2009, 08:03 AM
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Location: Brisbane, Australia (Formerly: Sunnyvale, CA)
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Quote:
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Currently 1990 944 S2, Black on Linen, 17" Turbo Twists |
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11-27-2009, 11:52 PM
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With a pair of vice grip, pinch the dowel so it compresses the gap then twist back and forth at the same time pulling it out. It should come out.
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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11-28-2009, 01:32 AM
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Location: Brisbane, Australia (Formerly: Sunnyvale, CA)
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Thanks -- I'll give it a go. Do you have any idea why they are in there in the first place? (I'd phone Zims to find out, but they are closed for the Thanksgiving break.)
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Currently 1990 944 S2, Black on Linen, 17" Turbo Twists |
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11-28-2009, 02:36 AM
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Location: Brisbane, Australia (Formerly: Sunnyvale, CA)
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OK - got them out. Didn't have a pair of vice grips, so I wrestled with a set of non-locking multigrips. Didn't actualy remove them with the multigrips, but I mangled the end of one of the inserts badly enough that I could put a drill bit through that was about 6mm in diameter, and then tap it out. The insert came in handy to help press the other one out, also tapping with a hammer.
So not the most elegant approach, but it's done. Thought I'd write this up in case anyone else comes across this. I wonder if these dowel inserts are anything to do with a 968 block? (since the 944 and 968 have the same waterpump...)
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Currently 1990 944 S2, Black on Linen, 17" Turbo Twists |
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11-28-2009, 11:15 PM
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911
