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> Metric brake fitment question aka cheep brakes
macnichol
post Nov 30 2020, 12:27 AM
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I think my brakes may be toast, I’ve been soaking them in a mix of Marvel Oil and some leftover unused diesel weight truck motor oil for about a month now and I hope they come free. We’ll see if they come loose with some pb blaster too. Do any of you guys know if this fits for front brakes?

https://www.carid.com/racing-power-company/...?vehicle=115386

I know it’s probably not going to be as good as oem, I’m just a poor college student haha. My goal here is simply driving and stopping safely, I’ll do a full restoration in a few years when I’ve got the money to. I’d just hate to miss out on these cars and then have them skyrocket the way 911’s seem to have done.
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Mueller
post Nov 30 2020, 12:57 AM
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QUOTE(macnichol @ Nov 29 2020, 10:27 PM) *

I think my brakes may be toast, I’ve been soaking them in a mix of Marvel Oil and some leftover unused diesel weight truck motor oil for about a month now and I hope they come free. We’ll see if they come loose with some pb blaster too. Do any of you guys know if this fits for front brakes?

https://www.carid.com/racing-power-company/...?vehicle=115386

I know it’s probably not going to be as good as oem, I’m just a poor college student haha. My goal here is simply driving and stopping safely, I’ll do a full restoration in a few years when I’ve got the money to. I’d just hate to miss out on these cars and then have them skyrocket the way 911’s seem to have done.



Those calipers are for GM (General Motors) and will not fit the 914.

I'd place a WTB ad in the classifieds, add how much you are willing to spend with shipping and see if you get any bites.
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mb911
post Nov 30 2020, 07:25 AM
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QUOTE(macnichol @ Nov 29 2020, 10:27 PM) *

I think my brakes may be toast, I’ve been soaking them in a mix of Marvel Oil and some leftover unused diesel weight truck motor oil for about a month now and I hope they come free. We’ll see if they come loose with some pb blaster too. Do any of you guys know if this fits for front brakes?

https://www.carid.com/racing-power-company/...?vehicle=115386

I know it’s probably not going to be as good as oem, I’m just a poor college student haha. My goal here is simply driving and stopping safely, I’ll do a full restoration in a few years when I’ve got the money to. I’d just hate to miss out on these cars and then have them skyrocket the way 911’s seem to have done.


Try rockauto.com for some deals on calipers usually pretty cheap.
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bbrock
post Nov 30 2020, 09:06 AM
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Check out this how-to from PMB before giving up on your calipers: https://www.pmbperformance.com/brakehowto.html Lots of tips there for getting pistons unstuck. I had to go the grease route on one but it worked.

+1 for placing a WTB ad. You may be able to get a set of rebuildable cores at a very good price.
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mb911
post Nov 30 2020, 09:16 AM
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Rock auto has rebuilt fronts for $45 each.. They are not restored like PMB does but they will stop your car.
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9146C
post Nov 30 2020, 12:06 PM
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You haven't mentioned if you're struggling with the fronts or rears.

PMB put together an excellent video on removing the rear pistons:

https://www.youtube.com/watch?v=dm_DnizKOZM
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macnichol
post Nov 30 2020, 12:19 PM
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QUOTE(9146C @ Nov 30 2020, 01:06 PM) *

You haven't mentioned if you're struggling with the fronts or rears.

PMB put together an excellent video on removing the rear pistons:

https://www.youtube.com/watch?v=dm_DnizKOZM


@9146C

Both are pretty fubar'ed but I'll check how they're looking once I get home. The guys in my auto shop class mentioned a quick fix would be to get front brakes and crimp off the back brake lines w/ vice grips, but I'm not too hot on that idea unless I'm out of options.
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macnichol
post Nov 30 2020, 12:25 PM
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QUOTE(mb911 @ Nov 30 2020, 10:16 AM) *

Rock auto has rebuilt fronts for $45 each.. They are not restored like PMB does but they will stop your car.


@mb911

Will I be able to use '76 front calipers on my '70 car? I'm pretty sure it's only the rears that are different from early/late, right?
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9146C
post Nov 30 2020, 12:26 PM
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@9146C

Both are pretty fubar'ed but I'll check how they're looking once I get home. The guys in my auto shop class mentioned a quick fix would be to get front brakes and crimp off the back brake lines w/ vice grips, but I'm not too hot on that idea unless I'm out of options.
[/quote]


Another option for the front, is a BMW caliper conversion...not talked about too much lately...pretty popular as an inexpensive conversion back in the day...although haven't priced these parts in a long time. Most have gone with the 5 lug conversion and Porsche "M" brakes in the front.

https://www.pelicanparts.com/techarticles/9...MW_calipers.htm
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9146C
post Nov 30 2020, 12:32 PM
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Inexpensive options first...

As bbrock mentioned above...a grease gun will help to remove the front pistons.

Check out the following link:

http://www.914world.com/bbs2/index.php?showtopic=62347
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AZBanks
post Nov 30 2020, 12:34 PM
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I have the BMW 320i brakes and I am very happy with them. good stopping power and very easy to modulate at the limit.
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davep
post Nov 30 2020, 10:10 PM
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QUOTE(macnichol @ Nov 30 2020, 01:25 PM) *

Will I be able to use '76 front calipers on my '70 car? I'm pretty sure it's only the rears that are different from early/late, right?

No, the rears would not matter, but the fronts are not interchangeable.

Your auto class buddies are trying to KILL you with the suggestion of disabling rear brakes. In a 914 that would cause a spin and likely a crash.
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Mikey914
post Nov 30 2020, 10:41 PM
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I'm all for learning, but you are right to doubt their advice.
Just tell them you had a better idea and got a cheap boat anchor at Harbor freight and tied it to the engine block with a chain. You can just throw it out to stop. Just say it with a straight face.

I'd pay a dollar to hear their response.

Trust the guys here. If you do replace them use the same part. They are not too terribly expensive.
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