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Daily comedy

 
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Mike9311  



Joined: 14 Dec 2004
Posts: 834
Location: Chicago-ish

PostPosted: Thu Jun 11, 2020 3:55 am    Post subject: Daily comedy Reply with quote

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


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1980 931 since 1989
1981 Ideola 931 Club Sport
1982 931 Entwicklungsfahrzeug
1979 924 NA M650 Herausnehmbares Dach
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: 8298
Location: Royal Oak, MI, USA

PostPosted: Mon Jun 15, 2020 11:33 pm    Post subject: Reply with quote

OMFG what idiots.

Stuff like this is exactly why I'm always so skeptical when someone talks about buying a rebuilt motor etc...
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Vaughan Scott
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'79 924 #77 ITB racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
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jazz guy  



Joined: 26 Nov 2002
Posts: 401
Location: Colorado

PostPosted: Tue Jun 16, 2020 1:24 am    Post subject: Reply with quote

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.
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Mike9311  



Joined: 14 Dec 2004
Posts: 834
Location: Chicago-ish

PostPosted: Tue Jun 16, 2020 4:09 am    Post subject: Reply with quote

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


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1980 931 since 1989
1981 Ideola 931 Club Sport
1982 931 Entwicklungsfahrzeug
1979 924 NA M650 Herausnehmbares Dach
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: 401
Location: Colorado

PostPosted: Tue Jun 16, 2020 4:46 am    Post subject: Reply with quote

Mike9311 wrote:
So they bent over the edges to try to get it to grab the valve guide? Why...

Why? Because PO.
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