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T77911S's Avatar
 
Join Date: Oct 2006
Location: MYR S.C.
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help: multiple Q's

got it off the road to do:
rear wheel bearings
shift rod seal on tranny
brakes
heat controls
test injector flow
any other oil leaks

not much.

1 cant get the small tranny seal out and don't want to damage the case. considering removing the tail end of the tranny to get it out. plan is to replace the tranny vent with a plug and stand it on its end. (just changed fluid about 20k miles ago).
anything I need to know about pulling the tail end off.


2 brakes. it had the blue brake fluid in it when I got the car. brakes have sucked since I bought. my 77s would easily out brake the 930. the 930 would fade after 2-3 hard stops. put new rotors on the front along with better pads, had mintex, but then so did my 77. I did not have any blue fluid so I went back with I think DOT 4. after it sounds like the MC makes a squeeking sound and brakes still not that good. sounds like rubber squeekng. I have all 4 calipers off, the rear ones apart. had some sticky pistons on the rear,.
no leaks, any need to replace the seals? pistons look good. (already had the fronts apart). the pistons don't seem to move very easily which may be a good thing as far as seals being bad.
was thinking of removing the MC just to take it apart and clean it up.
I have heard once its had the blue stuff in there you cant go back to regular fluid.
it looks like a major pain to remove the MC. is it worth my time.
I though maybe cleaning off all the old blue stuff might help.
was also going to flush the lines.

3 I rebuilt the scavenge pump a while back but still looks like there might be a small oil leak. is there a seal on the cam shaft that needs to be replaced.

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86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:

Last edited by T77911S; 12-12-2016 at 08:53 AM..
Old 12-12-2016, 04:19 AM
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You might want to get a pressure bleader. They have a replacement brake fluid thats gold colored. it's the same as the blue but different color. Flush everything till the new fluid comes out of each of the calipers. Then get some help and to do a round of the old pump up and hold while you bleed each caliper. It's my understanding that they had to stop using the blue stuff due to some arcane DOT rule. The reason for the two colors was so you could tell when you flushed your brakes the difference between the new and old fluid.
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Old 12-12-2016, 05:50 AM
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Should I use dot 5 fluid. That's what the old blue stuff was isn't it.
Is there a problem going between dot 5 to 4 then 5.
Dot 5 and the blue stuff are silicone correct
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86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:
Old 12-12-2016, 08:55 AM
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Tip for removing shift shaft seal (works for any oil seal of that type): carefully drill a small hole in the metal portion of the seal, put an appropriately sized self tapping screw in the hole, now you can use the screw as a "handle" to grab with pliers and pull the seal out.
Old 12-12-2016, 09:02 AM
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Ah. I see super blue is dot 4.

So any reason to replace the seals in the calipers if they are not leaking
They are rediculously expensive
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86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:
Old 12-12-2016, 09:02 AM
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i was told the wheel bearings were done not long before I bought the car. I have not looked at the receipts to verify or see who did them. but it does look like they may have been done. I see white paint marks marking the location of the nut on the hub. I have a feeling they did not replace the crush washer and just put the nut back on to its original location.
the hubs turn very very easy. not like when we did my brothers. we did check the rotation force on his with a torque wrench,. mine wont even register.
drivers side sounds bad, passenger side sounds OK. will still do both.
have not started this yet,
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86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:
Old 12-13-2016, 04:45 AM
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Quote:
Originally Posted by T77911S View Post
Ah. I see super blue is dot 4.

So any reason to replace the seals in the calipers if they are not leaking
They are rediculously expensive
Sounds like you have bigger brake issues. If you have sticky pistons in your calipers a simple fluid flush isn't going to make it go away. Could be corrosion or rust on the piston itself. Do it correctly, find the squeak in your MC, fix that, then fix the sticky pistons. Don't cheap out on brakes.
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Old 12-13-2016, 06:42 AM
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have calipers apart and pistons look good.
question is, if they do not leak, do I need to change the rubber seals/scrappers inside.
they also look good and pistons are a very tight fit. even after working them in and out quite a bit they are still hard to remove.
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86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:
Old 12-13-2016, 07:04 AM
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On the shift seal> Get a clean pan, buy or clean one, dump the oil either save it or change it. I would suggest changing it. Oil is cheap compared to the tranny. While the oil is in this clean pan you can inspect it.
Remove the nose cone of the tranny, easily done and no risk of damaging the parts in removing the seal. There really is not enough room to safely use the drill and screw method.

Old 12-14-2016, 06:12 AM
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