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Mike9311
Joined: 14 Dec 2004 Posts: 1678 Location: Chicago-ish
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Posted: Thu Jun 11, 2020 3:55 am Post subject: Daily comedy |
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So remember the motor I have been looking at so I can quickly use temporarily for the summer? The one with the mystery bits in the oil pick up. The one with 'one' incorrect valve seal that they bent to try and make it fit the guide....
Well this is how the shop put in new valve guides.
They punched the guide surface to control interference fit to the head
Is there a large head slapping emoji to insert here. My wife always asks me why I do everything myself. Well, that's easy. Its for things like this. I am not even pointing out the extra machining they did in the valve seal area. Ok I just did. Not sure why they machined it down farther? So the spring bearing could dance around? Sorry for the poor pic
_________________ 1980 931 since 1989
1981 Ideola 931 Club Sport
1982 931 Entwicklungsfahrzeug
1979 924 NA ohne 650 mit 471
1982 931 Red Resurrection - 951 IC
1982 931 parts car / resurrection?
1980 924 NA (R&D lightweight)
1982 931 wana-be GTR race car |
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924RACR
Joined: 29 Jul 2001 Posts: 8794 Location: Royal Oak, MI, USA
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Posted: Mon Jun 15, 2020 11:33 pm Post subject: |
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OMFG what idiots.
Stuff like this is exactly why I'm always so skeptical when someone talks about buying a rebuilt motor etc... _________________ Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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jazz guy
Joined: 26 Nov 2002 Posts: 434 Location: Colorado
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Posted: Tue Jun 16, 2020 1:24 am Post subject: |
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924RACR wrote: | Stuff like this is exactly why I'm always so skeptical when someone talks about buying a rebuilt motor etc... |
+1 Whenever I see the word "rebuilt" in a description, I just substitute it with "fubar."
Good thing you have the ability to fix things correctly Mike. _________________ '81/'81/'82 |
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Mike9311
Joined: 14 Dec 2004 Posts: 1678 Location: Chicago-ish
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Posted: Tue Jun 16, 2020 4:09 am Post subject: |
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Not sure if you guys saw the Valve Seals from this one. One valve seal was brown while the rest green. Fine, I don't care about the color of the viton, but the brown one was the wrong size. So they bent over the edges to try to get it to grab the valve guide? Why they also machined down all the guides farther than the valve seal seat I just don't know. At least this came from a junk parts car I picked up as an "extra" car during the purchase of a running 931
_________________ 1980 931 since 1989
1981 Ideola 931 Club Sport
1982 931 Entwicklungsfahrzeug
1979 924 NA ohne 650 mit 471
1982 931 Red Resurrection - 951 IC
1982 931 parts car / resurrection?
1980 924 NA (R&D lightweight)
1982 931 wana-be GTR race car |
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jazz guy
Joined: 26 Nov 2002 Posts: 434 Location: Colorado
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Posted: Tue Jun 16, 2020 4:46 am Post subject: |
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Mike9311 wrote: | So they bent over the edges to try to get it to grab the valve guide? Why... |
Why? Because PO. _________________ '81/'81/'82 |
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