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1984 633i: Saved from the barn

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Doctorbeer
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Re: 1984 633i: Saved from the barn

Post by Doctorbeer » Sat Jul 11, 2020 3:33 am

Some more photos.
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Pitting in the metal was very minor. I was worried I would need to use bondo. However the primer filled it all in perfectly fine and the first patch is done. I'll be working on the rest of the body all month.
1984 633i Auto

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hornhospital
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Re: 1984 633i: Saved from the barn

Post by hornhospital » Sat Jul 11, 2020 5:27 am

Nothing wrong with spray cans if it's done right. Prep is everything.
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'85 325e "Hazel Ann";'87 325is "Odette"; '93 325is "Elvira"; '95 M3 "Ashlyn"; '95 318is "Bebe"

songzunhuang
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Re: 1984 633i: Saved from the barn

Post by songzunhuang » Tue Jul 14, 2020 6:33 am

hornhospital wrote:
Sat Jul 11, 2020 5:27 am
Nothing wrong with spray cans if it's done right. Prep is everything.
Gotta keep it protected. I've noticed that when I use a spray can, it looks ok for a while but then it starts to check and crack. I tried a spray can for a few years but I finally got around to fixing the paint with a 2 part catalyzed paint and of course, it's held up very well. Anyway, good luck and we look forward to seeing the day when this ride is as good as new.
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Song Huang
1984 633CSi
Last 7 of VIN: 6997383

Doctorbeer
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Re: 1984 633i: Saved from the barn

Post by Doctorbeer » Tue Jul 21, 2020 5:38 pm

songzunhuang wrote:
Tue Jul 14, 2020 6:33 am
hornhospital wrote:
Sat Jul 11, 2020 5:27 am
Nothing wrong with spray cans if it's done right. Prep is everything.
Gotta keep it protected. I've noticed that when I use a spray can, it looks ok for a while but then it starts to check and crack. I tried a spray can for a few years but I finally got around to fixing the paint with a 2 part catalyzed paint and of course, it's held up very well. Anyway, good luck and we look forward to seeing the day when this ride is as good as new.
That's what I figured will happen, this is short term for now. As long as I can keep the metal in good shape, I can get a better paint job when I am ready. I love driving the car, so she can look ugly for a bit.

The first issue of the year has come. I've noticed for a few weeks my power steering reservoir is getting low every few days. Even one time being empty. (I noticed when the steering was whining loudly.)I could not for the life of me find any hose leaking, I just went around and tighten all the clamps.

Well today I did a underbelly inspection because I am planning to replace the suspension, and low and behold I check out the the driver side and notice ATF fluid that looks like it is dripping on the control arm. I look up towards my brake booster only to find this:
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I don't know why I didn't reach and feel the brake booster before, but it is leaking. I will have to find a kit and rebuild.
1984 633i Auto

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86_6series
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Re: 1984 633i: Saved from the barn

Post by 86_6series » Tue Jul 21, 2020 11:33 pm


songzunhuang
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Re: 1984 633i: Saved from the barn

Post by songzunhuang » Wed Jul 22, 2020 12:27 am

86_6series wrote:
Tue Jul 21, 2020 11:33 pm
Only one place to go to.

http://bigcoupe.com/phpBB3/viewtopic.php?t=28245
Yes, Jay is your man! I just did this on my car and you can see all the trials and tribulations on my project record (page 31). Also, I upgraded to an aluminum part to avoid messing with the removal and install of the seal. It's not so bad of a job. Just create the special tool (I did it for $8) and then patiently work through the steps.
Last edited by songzunhuang on Wed Jul 22, 2020 6:46 pm, edited 1 time in total.
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Song Huang
1984 633CSi
Last 7 of VIN: 6997383

Doctorbeer
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Re: 1984 633i: Saved from the barn

Post by Doctorbeer » Wed Jul 22, 2020 1:29 am

Wow, that's absolutely perfect. Thanks guys!

I checked out the aluminum part, I am sold on that. I was reading the tutorial and was starting to dread the plastic part. 40 years old plastic.. it sounds like a headache in the making. #-o

I'll shoot him a message and see if he has any kits and the aluminum part in stock and I guess I am rebuilding a booster next week. :)
1984 633i Auto

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Re: 1984 633i: Saved from the barn

Post by songzunhuang » Wed Jul 22, 2020 2:33 am

Doctorbeer wrote:
Wed Jul 22, 2020 1:29 am
Wow, that's absolutely perfect. Thanks guys!

I checked out the aluminum part, I am sold on that. I was reading the tutorial and was starting to dread the plastic part. 40 years old plastic.. it sounds like a headache in the making. #-o

I'll shoot him a message and see if he has any kits and the aluminum part in stock and I guess I am rebuilding a booster next week. :)
I'm not sure if Jay has the aluminum part. In case he doesn't, I got mine from [email protected]. The guys name is "Bill".
I got all the other rings and seals from Jay.

I should also mention that when I replaced my part, I was surprised at how sturdy the plastic piece was. It didn't look the worse for wear and didn't feel that brittle. Maybe being sealed away in an enclosure with no UV rays and constant lubrication helped its' longevity. Of course this is all subjective. Like you, I didn't want to chance it.
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Song Huang
1984 633CSi
Last 7 of VIN: 6997383

Doctorbeer
Posts: 25
Joined: Wed Oct 16, 2019 2:57 pm
Location: Ohio

Re: 1984 633i: Saved from the barn

Post by Doctorbeer » Tue Jul 28, 2020 3:18 am

Thanks for the email, I did find their site too earlier this week. Jay did not have the aluminum part. So I may give them a try to see if they have any in stock.

I did a bit more reading on the subject, and a lot of people say leaking from the front is either the oring around the cup, or the shaft seal. I found a replacement o-ring for 1 dollar. I figured I'd give that a shot, if it turns out to be the shaft seal I'll go ahead and order the aluminum cup and replace it all like originally planned. Worst case is I delay fixing the leak by a week or so waiting for the parts and I have to remove the booster a second time.

I plan to give this a shot Wednesday, then the rest of the week I will be doing the entire front suspension.
1984 633i Auto

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sansouci
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Re: 1984 633i: Saved from the barn

Post by sansouci » Wed Jul 29, 2020 1:26 pm

+1 for Jay
+1 for Bill @ maxlumens

I used a rebuilt ATE brake master cylinder at the same time. The first rebuilt unit leaked so the rebuilder replaced it on an exchange basis.
Sansouci
84 E24 633Csi Auto, Bronzit/PearlBeige 6997510
93 E32 740il M60 Auto, Alpenweis/Ultramarine
60 528i M30 5-speed Green/Beige (crushed)
71 240Z 4-speed White/Blue (rusty & sold)
65 396 Chevelle 4-speed, Marina Blue/Black (stolen)

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