another 85 M635Csi project

[CSGuy]

Originally all I wanted the car for was the Motor/trans...When I finally saw it, the car was too solid to part up...New project.

I have no paperwork on the car, other than the guys at the shop telling me the car was previously serviced at Fahey's.
I found a set of 8&9 inch type 32 wheels so the car will ride on 235/45x17 and 255/40x17s... after I replace suspension rubber, shocks, add a strut bar and camber plates...If there are product suggestions or additional mods I should look at, I'm hoping for input
From reading here, I've added steering box reinforcement to the shortlist...as soon as I check if it's already been done.

I haven't gotten the car home yet and guess I'll need to pull the cam cover as the serial says its an S35 but the cover says it an M88. so I can't say what I have.

[brickwhite]

Did you mean S38?

if you have a tag like this in your engine bay you have a M88

[CSGuy]

Yes, S38... I'll check

Thanks

[orval2]

Oh! it is a rare M635csi without the arches extension and the thin TRX wheels (they look great)

[CSGuy]

Did you mean S38?

if you have a tag like this in your engine bay you have a M88

Yup, it has one. Thanks for the tip

[CSGuy]

Round one complete...All new suspension bushings, bilsteins and staggered style 32's and tires...180 miles on it and so far so good. I was hoping the M series ride would be a bit more to the firm side but we'll see.

A couple of issues. Steering is vague. Read that a box adjustment could help and the shifting is balkier than the 915 in my 911

One thing. when parked in the driveway with rear low it developed a rattle in the engine compartment that I couldn't find. with the car level, it went right away. Fluid levels all looked OK

If anyone has an insight to the shifting and rattle issues...I am all ears

[GazM3]

The steering vagueness is prob caused my multiple factors. Firstly the steering re-enforcement bracket (weld in) should be done, then all bushes and links in the front end as they are much easier than doing the rear. Some extra negative camber on the front (strut tops) will help turn in and also some front and rear strut top braces will help keep the alignment more stable

Wheel alignment will obviously needed but it’s abit pointless if the bushes and links are shot.

[CSGuy]

Hi Gaz, I should have given more detail on the steering...before the new tires and wheels were added, I replaced all the worn bushings (front/rear) and added the mwrench reinforcement. No sign of trouble with the mount but the reinforcement seemed like cheap insurance given the wider and more modern rubber and realigned

I was a bit concerned that the offset of the style 32's had some unforeseen impact but I had all the fluids flushed and refilled today..Surprisingly big difference. That also stopped the rattle when the car is on a grade. I'll drive it a bit and see.

The shifting I may have to live with. I had a local wrench that's very familiar with these cars check it. He seemed to think it was pretty normal.

Now to find an interior guy that can help me with the suncracked dash...I found a clean set of speaker pods for the rear...With the seats and dash done, I'll be a happy camper..At least for a while

[GazM3]

If all the bushes are done definetly consider the front and rear strut tower braces.

If u can get a way of adding some front -ve camber do it.

[CSGuy]

TY Gaz....I made 80/90 freeway miles today. The car was solid and a pleasure to drive

Rodger that on the sway bars. I'd like to find an aluminum one, solid that doesn't bolt together at the towers.

Shifting, it's no tremac but with a light touch and the fresh fluids, it's bearable

On the camber...I looked at camber plates when doing the front suspension but it seemed like they added a bit of hight to the car.
Am I looking at that the wrong way?

[tschultz]

On that tag, what does the ABR NBR mean? I have the same tag on my '81 635

[GazM3]

The bolt together ones are fine. I got mine at Schmiedmann for memory and yes in aluminium.
I done all the bushes camber steering etc etc and once I put the bars on it was the most massive difference. I guess it makes all the other items work properly as there prob is lots of flex in the towers. Done the tower bars on the e34 and there was bugger all difference. Yet to do on the 2002 but planned


I’m pretty sure Ireland engineering (or a similar amarican vendor) do a fixed and adjustable plate that doesn’t effect the ride height. U can only get another degree or so due to the stock spring being a large dia

[CSGuy]

On that tag, what does the ABR NBR mean? I have the same tag on my '81 635

Not really sure
I see this h/l in a German forum

BMW Herstellernachweis mit Datenblatt / Fzg. ABE Nr. (BMW-E24-Forum)

https://forum.6ercoupe.de/index.php/index.php?id=118836

google translate turns it to this;

BMW manufacturer's certificate with data sheet / vehicle registration number (BMW-E24-Forum)