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  Topic: Scattershield
MikeJinCO

Replies: 0
Views: 45

PostForum: 924 Racing Today   Posted: Thu Sep 16, 2021 11:26 pm   Subject: Scattershield
I have a lightened (approx 3 lb) flywheel I got several years ago from I believe Ed Moore. In our organization We are required to have a flywheel scattershield. I have some 4130 steel plates welded ...
  Topic: CALM All Porsche
MikeJinCO

Replies: 11
Views: 1956

PostForum: 924 Racing Today   Posted: Thu Sep 16, 2021 10:34 pm   Subject: CALM All Porsche
Agree with RACR on Accusump. Plumbing it is a nightmare,but after my experiments with water in the pan simulating a 1g turn last winter with the oil pickup on the side of the pan it is exposed to air ...
  Topic: Oil Temp Problem
MikeJinCO

Replies: 10
Views: 606

PostForum: General Discussions   Posted: Thu Sep 16, 2021 10:23 pm   Subject: Oil Temp Problem
I measure the temperature coming off the motor where I should measure it in the sump or returning to the sump. I drilled and tapped the drain plug but did not want to be disconnecting it all the time ...
  Topic: Oil Temp Problem
MikeJinCO

Replies: 10
Views: 606

PostForum: General Discussions   Posted: Wed Sep 15, 2021 11:23 pm   Subject: Oil Temp Problem
Update. Ran it on blocks for 15 minutes and transmission not a problem. Then took it out to track last week. Temperature only 80F(morning) oil temperature never got over 210F, water at 180F. Next ...
  Topic: wristpin bushing resize to 22mm
MikeJinCO

Replies: 10
Views: 2169

PostForum: Performance Upgrades   Posted: Thu Sep 09, 2021 3:55 am   Subject: wristpin bushing resize to 22mm
Just received 22mm reducing bushings from EBS Racing, were in stock and $10 ea. 27mm OD, 22 Id undersized sized for ream to size. My motor machinist did not want to go about ordering pistons without ...
  Topic: 1978 Fuel Pump Saga - continued
MikeJinCO

Replies: 2
Views: 280

PostForum: General Discussions   Posted: Wed Sep 08, 2021 3:09 am   Subject: 1978 Fuel Pump Saga - continued
Find some new copper crush washers. The crush washers work harden when the banjo bolt is tightened, so won't always reseal. Supposedly they can be stress relieved if heated with a propane torch, bu ...
  Topic: need head bits, 81-2 door handles vs wipe
MikeJinCO

Replies: 3
Views: 253

PostForum: Cars and Parts Wanted/For Sale   Posted: Sat Sep 04, 2021 1:09 am   Subject: need head bits, 81-2 door handles vs wipe
For valve guides try Yakima Auto Parts, they sell on ebay a lot, but I'd go direct. You will need the PN off the PET downloadable from Clarks Garage. They like to confuse the 924S/944 PN's with 924. ...
  Topic: fresh air Blower motor upgrade?
MikeJinCO

Replies: 4
Views: 1803

PostForum: General Discussions   Posted: Thu Sep 02, 2021 9:38 pm   Subject: fresh air Blower motor upgrade?
Years ago I adapted I believe a VW Rabbit squirrel cage motor into the housing for the existing window fan style vertical motor(non-AC) and did a "How to" on it. It got really clugy and ug ...
  Topic: Race Grade Valve Springs
MikeJinCO

Replies: 2
Views: 318

PostForum: Performance Upgrades   Posted: Tue Aug 31, 2021 10:36 pm   Subject: Race Grade Valve Springs
We were headed that way until he figured out the thickness of the spacer required under the valve springs and just said no. It was definite enough I didn't question it. He is the third generation o ...
  Topic: Race Grade Valve Springs
MikeJinCO

Replies: 2
Views: 318

PostForum: Performance Upgrades   Posted: Mon Aug 30, 2021 11:31 pm   Subject: Race Grade Valve Springs
My 7mm valve stem 931 head is stalled as the machinist I trust is 6 months behind, so I pulled out my spare 931 head and started chasing valve springs to work with the stock valves. It is well know t ...
  Topic: Big Valve Head
MikeJinCO

Replies: 2
Views: 409

PostForum: Performance Upgrades   Posted: Sat Aug 28, 2021 10:42 pm   Subject: Big Valve Head
When I was looking for valve guides, europeanmotorworks.com said that they had originally supplied the parts for the big valve head and still had parts for it.

I have a 294 (248@.050) degree Cat ...
  Topic: Oil Temp Problem
MikeJinCO

Replies: 10
Views: 606

PostForum: General Discussions   Posted: Wed Aug 25, 2021 10:49 pm   Subject: Oil Temp Problem
Thanks for the input, it starts me thinking about this in different ways. I originally had an oil thermostat, but removed it a few years ago as when I looked at how it worked the one I had really res ...
  Topic: Oil Temp Problem
MikeJinCO

Replies: 10
Views: 606

PostForum: General Discussions   Posted: Wed Aug 25, 2021 6:45 am   Subject: Oil Temp Problem
In the track car the motor oil has been running 220F for the last two years. Last time out it pegged at over 250F. I have changed the oil and dismantled and cleaned out the entire system and cut the ...
  Topic: My 924 Turbo, engine done :(
MikeJinCO

Replies: 249
Views: 120843

PostForum: Performance Upgrades   Posted: Fri Aug 20, 2021 12:16 am   Subject: My 924 Turbo, engine done :(
On installing Cometic head gaskets I found out the hard way. When torquing down my motor guy said to torque to about 60ft-lb, then back off about 1/3-1/2 turn then re-torque to required amount. Shou ...
  Topic: Brakes dragging..
MikeJinCO

Replies: 30
Views: 7022

PostForum: General Discussions   Posted: Sun Aug 15, 2021 8:16 am   Subject: Brakes dragging..
Didn't see anywhere on thread that you checked the wheel bearings. Also, aren't there some calipers that maintain a bit of pressure rather than full release? Could the 240 calipers be doing that? ...
 
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