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Join Date: Mar 2020
Posts: 291
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Nice build .......
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11-26-2025, 04:33 PM
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I had already gone through and inspected/cleaned up the original oil pump for this engine, when I came across a Pelican thread mentioning the installation of a 964 oil pump into the older 2.7 magnesium case engines.
Took about 10 minutes total time with a die grinder, and the pump fits! Now I have a Ziploc sandwich baggie full of magnesium shavings to take camping with me.  The area marked with orange paint pen is what needed to be removed.   
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12-04-2025, 08:25 AM
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Brought the connecting rods home from the shop, after resizing the big end.
The rods were fairly close in weight; the lightest being 712g total, and the heaviest being 716g.   It did not take too much time to remove the small amounts of material from the big end of each rod to get them all the same weight. 
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12-04-2025, 08:35 AM
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Join Date: Nov 2001
Location: Denver
Posts: 9,750
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I think they changed later in the year. If your car had early fender flares, it probably has the tunnel reinforcement
Quote:
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12-05-2025, 03:49 AM
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Man I've been so out of touch with the activity on the forum, I completely missed this one! Looking forward to catching up on it when I have some time!
Looks like a really neat car!
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Heavy Metal! Part Deux - The Carbon Copy Project Heavy Metal https://tinyurl.com/57zwayzw (SOLD) 85 Coupe - The Rot Rod! AX beater Quality Carbon Fiber Parts for Classic 911s: instagram.com/jonny_rotten_911 |
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12-05-2025, 08:31 AM
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Ah I see that's interesting.
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04 Challenge Stradale, ex- Carolla 04 996 GT3, white, PCCB, yellow belts 74 USA Carrera #039, early car 73RS parts |
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12-06-2025, 01:19 PM
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How to repair self inflicted damage
During the oil pump tear down and cleaning, I got a little too enthusiastic with a copper hammer, and damaged one of the bushings in the oil pump!
After about one hour on the Internet, I finally found a company that had the correct linear sleeve bearing. The only dimension that is not exactly the same is the length of the replacement bearing; it is about 1.5mm shorter.    
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12-08-2025, 09:55 AM
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PCA Member since 1988
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I wouldn't worry about 1.5mm. If the new bushing has a split on one side, make sure you install it in the same orientation as the bushing that came out. It should be towards the other bushing. As the pump gears rotate, they try to push each other apart, so the greatest load is on the opposite sides of those bushings. You don't want the split there.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners. Cars are for driving. If you want art, get something you can hang on the wall! |
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12-08-2025, 06:10 PM
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Well, shoot
I thought I had looked at the rocker arm bushing visually before starting to reassemble the engine. Clearly I did not. 
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12-19-2025, 07:35 PM
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Wow !! You caught it on time ..
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12-19-2025, 07:41 PM
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As you can tell, the valve seats are absolute garbage. This is a test set of cylinder heads, but I’m using to test a new cylinder head fixture that I made.
  
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12-25-2025, 09:05 PM
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Vegas
Porsche
