Help Support Bigcoupe.com

Search found 85 matches

by Pasocb
Fri Oct 08, 2021 10:58 am
Forum: Gallery
Topic: Pacific Sharkfest 2021 pix
Replies: 13
Views: 476

Re: Pacific Sharkfest 2021 pix

Thanks for posting these pictures Bob. It was a great event for us with lots old friends (and some new ones too). Unfortunately I wasn’t able to get much in the way of photos. I did manage to get one shot of the the “new” guys that made the longest drive down from northern Oregon and Washington befo...
by Pasocb
Thu Apr 08, 2021 1:31 pm
Forum: Engine - Mechanical - Electrical
Topic: Motronic basic wiring diagram.
Replies: 7
Views: 2307

Re: Motronic basic wiring diagram.

Hi, I can't help with the diagram but I do have the same model and it's not going anywhere soon so if you need to try an ECU swap or something, that could be arranged. jps635, any chance I could also have a copy of that diagram? Cheers. Olympia57, I too have a late series-one car with Motronic that...
by Pasocb
Sun Apr 04, 2021 2:37 pm
Forum: Engine - Mechanical - Electrical
Topic: Post Surgery - Car fires & sputters but will not start
Replies: 24
Views: 3961

Re: Post Surgery - Car fires & sputters but will not start

Reporting back with Diagnosis: Head gasket blown between #5 & #6. Leak down test helped verify this. Also have bad valve seals but thankfully no bent valves. The head is an '86 so has the bigger valve bores and parts are plenty. So, new head gasket and valve seals. While I have the head off, it wil...
by Pasocb
Sat Mar 27, 2021 1:25 pm
Forum: The Saloon
Topic: Where is Brucey, I hope this isn't the answer...
Replies: 22
Views: 5164

Re: Where is Brucey, I hope this isn't the answer...

This is very disturbing news. The last post that I found from Brucey was back in January but from what I understand, his participation on this forum reaches back to its early days. I am a much more recent recruit that quickly learned to value Brucey's thorough and eloquent input. His depth knowledge...
by Pasocb
Thu Mar 18, 2021 2:30 pm
Forum: My Project
Topic: Got gauges?!? Series 1 custom VDO gauge installation
Replies: 33
Views: 6715

Re: Got gauges?!? Series 1 custom VDO gauge installation

Nice post Bob. Really appreciate all the pictures for us graphic thinking folks!
by Pasocb
Thu Mar 18, 2021 2:27 pm
Forum: Engine - Mechanical - Electrical
Topic: Post Surgery - Car fires & sputters but will not start
Replies: 24
Views: 3961

Re: Post Surgery - Car fires & sputters but will not start

1981 BMW 635CSI Euro - M90 5 speed Car is running Motronic 1.x with a 735 ecu / MAF into an enclosed CAI / 24lb injectors 2.5 bar FPR Last summer the car was parked due to a misfire and sputtering like it was running on 4 of the 6 cylinders. Decided to tear it down and re-do it correctly. The PO wa...
by Pasocb
Sun Mar 14, 2021 12:29 pm
Forum: My Project
Topic: 1980 Euro 635 CSIA
Replies: 25
Views: 12341

Re: 1980 Euro 635 CSIA

My piston are grooved vertical from bad oil maintenance and driving hard with a cold motor, pistons expand quicker than cast steel so they grip to the cilinder wall. I saw this when I took the pistons out and the owner of the shop where I took the blok to for flattening the top warned me about it. ...
by Pasocb
Sat Mar 13, 2021 1:39 pm
Forum: My Project
Topic: 1980 Euro 635 CSIA
Replies: 25
Views: 12341

Re: 1980 Euro 635 CSIA

I believe that pistons or no longer available for the M90 engine. The very few adds that I have seen for new old stock pistons have been priced above custom fabricated pistons. I am curious to learn what lead you to seek new pistons. Perhaps a collapsed piston skirt or a badly scored cylinder wall? ...
by Pasocb
Mon Mar 01, 2021 12:26 pm
Forum: My Project
Topic: 1981 633 CSI Revival and Refresh
Replies: 30
Views: 15038

Re: 1981 633 CSI Revival and Refresh

Kurtis,
It warms my heart to learn that we have another car back on the road running more as it was originally intended.
Your input and feedback to the forum is what is most important to all of us and will continue to be useful into the future.
cb
by Pasocb
Mon Feb 15, 2021 9:13 pm
Forum: Useful links
Topic: The Complete BMW Line Up - Spring 1981 w\ Prices
Replies: 6
Views: 5264

Re: The Complete BMW Line Up - Spring 1981 w\ Prices

Thanks for sharing.
Phenomenal post.
by Pasocb
Mon Feb 08, 2021 1:25 am
Forum: Engine - Mechanical - Electrical
Topic: M90 questions
Replies: 32
Views: 5567

Re: M90 questions

My intake valve is: Valve stem 7,95mm Valve diameter 45,85mm Total lenght 107mm Does anyone knows what the dimentions are for an M30 intake valve? M30 and M90 valves are the same with exception to later b35 heads that have 1mm larger intake valve heads. I believe the specified valve stem diameters ...
by Pasocb
Sat Jan 23, 2021 12:20 pm
Forum: Engine - Mechanical - Electrical
Topic: M90 questions
Replies: 32
Views: 5567

Re: M90 questions

When I did mine, the block was true, but the head needed a skim. I don't recall anything standing proud from the head, and I was able to leave the alignment parts in the block in situ. Lowering the rebuilt head has to be done gently and accurately to avoid those alignment parts scoring the newly ma...
by Pasocb
Sat Jan 23, 2021 11:54 am
Forum: Engine - Mechanical - Electrical
Topic: M90 questions
Replies: 32
Views: 5567

Re: M90 questions

Got them out now the next thing to do is clean the block surface https://i.imgur.com/JUGhsOy.jpg Prior to reassembly, completely clear all the head bolt holes of any residual oil or debris. I like to confirm that a head bolt will easily thread all the way in by hand to each hole when I am done. It ...
by Pasocb
Wed Jan 20, 2021 12:55 pm
Forum: Engine - Mechanical - Electrical
Topic: M90 questions
Replies: 32
Views: 5567

Re: M90 questions

In the head of mij M90 are 2 pipes sticking out to guide de head on the block, can I just pull them out to clean the surface of the head? With pliers? They have to be removed when the head will be flattend, so I want to do it now then I got a flat surface to lay the head on. One can insert the shan...
by Pasocb
Mon Jan 18, 2021 2:15 pm
Forum: Engine - Mechanical - Electrical
Topic: M90 questions
Replies: 32
Views: 5567

Re: M90 questions

In my opinion, this version of the tool is one of the more elegant. It has an advantage that it is adjustable for any cam profile. I did noticed that the dimensions and angles given on-line seemed a little off. Presumably something got lost in my translation? So far I have not found a need to fabric...
by Pasocb
Thu Jan 14, 2021 2:02 pm
Forum: Engine - Mechanical - Electrical
Topic: M90 questions
Replies: 32
Views: 5567

Re: M90 questions

Hi Mopar, My apologies for chiming in late on this. As others have alluded to, you can utilize the M30 engine specifications to rebuild a M90. Basically, the engines only differ in basic bore/stroke geometry, piston crown design and cam profile. Your question regarding our engines' suitability to ru...
by Pasocb
Sat Dec 26, 2020 1:20 pm
Forum: Interior
Topic: Cloth Interior
Replies: 4
Views: 2325

Re: Cloth Interior

http://www.e-24.ru/eng/theory/colors/1976-01/ Thanks for this link. There is some good information on the E24 site and I especially like how it organizes things by build date . However, I am still a little unsure about fabric interiors and series-one cars. According to the site, the combination lea...
by Pasocb
Sat Dec 26, 2020 12:34 pm
Forum: Interior
Topic: Cloth Interior
Replies: 4
Views: 2325

Re: Cloth Interior

FYI My 7/84 came with anthracite velour like your pic as well as door cards. Although it had faded to a flannel green color by the time I got it. That pic looks like probably original color of velour. I'm pretty sure I'll be in shop on Wednesday if your out n about .,finally put radiator in B7 n fi...
by Pasocb
Thu Dec 24, 2020 2:00 pm
Forum: The Saloon
Topic: Happy Christmas!
Replies: 38
Views: 16330

Re: Happy Christmas!

Yes, Merry Christmas everyone.

I don't know about you all, but I plan on spending as much time as possible in 2021 with family and the BMWs.
by Pasocb
Thu Dec 24, 2020 1:56 pm
Forum: My Project
Topic: 1980 Euro 635 CSIA
Replies: 25
Views: 12341

Re: 1980 Euro 635 CSIA

What you describe sounds coincides with other series-1 cars that I have seen. I started a new topic under Interiors titled "Cloth Interiors" for you to post the pictures in and not have me hijack your topic. Sounds like you are making great progress on the car. It is great to see another hennarot tr...
by Pasocb
Thu Dec 24, 2020 1:23 pm
Forum: Interior
Topic: Cloth Interior
Replies: 4
Views: 2325

Cloth Interior

I am looking for images of and information about series-1 cars with factory cloth interiors. From what I understand, almost all cars shipped to the US received leather interiors. Series-2 cars appear to have fabric inserts in the door panels and the seats completely covered in fabric. From what I ha...
by Pasocb
Wed Dec 23, 2020 1:18 am
Forum: My Project
Topic: 1980 Euro 635 CSIA
Replies: 25
Views: 12341

Re: 1980 Euro 635 CSIA

By the way, I have an unrelated request.
If you have any photos of that cloth interior, it would be great to see them.
Over here in the US, we rarely get to see anything but leather interiors.
Your car being a series-one with what looks like original Recaros really has my attention!
by Pasocb
Fri Dec 18, 2020 12:58 am
Forum: My Project
Topic: 1980 Euro 635 CSIA
Replies: 25
Views: 12341

Re: 1980 Euro 635 CSIA

Yes, pulling those intake manifolds are a challenge. That paint mark looks similar to what is on M90 from my series-one with Motronic 1.0. The small double oo on yours is interesting. You can look and see if there are numbers that match the last digits of your VIN stamped on the flat boss above the ...
by Pasocb
Tue Dec 01, 2020 2:48 am
Forum: Exterior
Topic: Series 1 central vs left side exhaust exit
Replies: 20
Views: 5754

Re: Series 1 central vs left side exhaust exit

I am not going to admit how many series-one cars we currently have at our family shop. However, I can confirm that the Euro cars have their exhaust tips shifted left of center and US cars have them centered. Both US car and Euro car exhaust tips are pointed straight back in their original form.
by Pasocb
Mon Nov 16, 2020 12:49 pm
Forum: My Project
Topic: I'll Be Busy For a While - 1979 Euro 635CSi (M90 Powered)
Replies: 63
Views: 13668

Re: I'll Be Busy For a While - 1979 Euro 635CSi (M90 Powered)

Yasin, I really am enjoying these regular updates on your progress. It is great to see that this car is receiving some much deserved love. Your post are an inspiration to myself and other members of our shop to better document our continuous efforts to preserve these great vehicles. I look forward t...