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  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Mon Jun 13, 2022 2:25 am   Subject: Round 1, Fight!
Apologies for the radio silence, life is busy and progress has been slow.


Very nice work. I'd be interested in hearing more about how you used the TIG to straighten the head?


https://i.imgu ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Sat Oct 16, 2021 6:11 am   Subject: Round 1, Fight!
I've moved into the new shop, it's still a mess though.

https://i.imgur.com/Nzzyaxdh.jpg

https://i.imgur.com/qGFj9j8h.jpg

Done some ring work.

https://i.imgur.com/cuWB620h.jpg

https://i ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Sat Jul 03, 2021 6:10 am   Subject: Round 1, Fight!
Well, you have been busy, and inventive, and very resourceful.
love your work. Do keep us informed.

Cheers! I’ve been spending hundreds of hours researching, so I’m glad people who understand ...
  Topic: Just got a 931 project
Alleycat_Joe

Replies: 3
Views: 5013

PostForum: 931 Discussion   Posted: Fri Jul 02, 2021 7:07 am   Subject: Just got a 931 project
Good luck! I'm also in the process of restoring one of these cheese buckets.
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Fri Jul 02, 2021 6:57 am   Subject: Round 1, Fight!
Apparently Mittlemotor in Germany has the worlds supply of standard size con rod bearings

That seems about right, at least until Mespiècesauto starts making some. Picked some up for 145 Euro + 79 ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Fri May 21, 2021 9:38 am   Subject: Round 1, Fight!
I'm watching so keep it up!

Thanks! I've been busy on the car and sourcing parts so an update is due.


I goofed the final exhaust valve during disassembly of the head and didn't find out u ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Thu Mar 04, 2021 7:00 am   Subject: Round 1, Fight!
Title acquired and transferred into my own name! Let the spending begin!
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Sat Feb 20, 2021 9:15 am   Subject: Round 1, Fight!
Still hard at work here, I've put in around 20 hours since the last post cleaning and checking tolerances. So far nothing bad except warpage in the head and block. Block is within spec but this engine ...
  Topic: Exhaust manifold flange
Alleycat_Joe

Replies: 5
Views: 3239

PostForum: General Discussions   Posted: Sat Feb 20, 2021 2:19 am   Subject: Exhaust manifold flange
I have been regarding wastegate flanges as an option since they are close to the right size for the turbo head. Not sure on the NA specs as I am new. A lot of elbow grease with a file or a little time ...
  Topic: BMW M10 Rod Bolts ARP 201-6304
Alleycat_Joe

Replies: 2
Views: 2830

PostForum: General Discussions   Posted: Sat Feb 20, 2021 2:04 am   Subject: BMW M10 Rod Bolts ARP 201-6304
Considering I have found no sources for rod bolts, I'm looking at two options: ARP 275-6001 or off-the-shelf M10x1 Class 12.9 Allen Bolts with "High-Torque" 12 point nuts. ARP is rated to 22 ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Tue Jan 26, 2021 3:35 pm   Subject: Round 1, Fight!
...Measure carefully, then new rings/bearings/gaskets etc. Maybe consider a very light hone of the bores. Slight excessive piston to bore clearance can be taken up by ceramic coating the piston skirts ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Sun Jan 24, 2021 1:19 pm   Subject: Round 1, Fight!
Well Joe, you've done the hard work...Pull everything apart, check everything and rebuild as necessary.
Thanks, on it!

Here is the engine almost as it sat in the crate; I forgot to take pictures a ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Sat Jan 23, 2021 1:49 pm   Subject: Round 1, Fight!
Rasta, thanks for the tip. Although that didn't fix the problem, it's actually a part of the solution. I told the previous owner I wasn't going to wait on him to give me the title any more (I withheld ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Thu Oct 22, 2020 9:34 am   Subject: Round 1, Fight!
Sadly the restoration plans have been halted, due to the previous owner not coming up with the car's title. Without a title I can't register or drive the car on public roads. If the PO can't produce a ...
  Topic: Round 1, Fight!
Alleycat_Joe

Replies: 31
Views: 25005

PostForum: 931 Discussion   Posted: Wed Sep 23, 2020 11:47 am   Subject: Round 1, Fight!
There are some interesting finds after some 931 diagnosis. Compression is 130 psi across cylinders 1-3 at five revolutions but lower on cyl 4. It reached 113 psi after both wet and dry compression tes ...
 
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