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Front master cylinder bore size
Posted: Sat Apr 11, 2015 8:43 am
by mike209
What is the limit on front master cylinder bore, I had cylinder with stuck piston so I milled it out and honed cylinder, I had to open it up to .631 to remove all the corrosion, is .006 over too much?
Re: Front master cylinder bore size
Posted: Sat Apr 11, 2015 9:02 am
by EMS
mike209 wrote:What is the limit on front master cylinder bore, I had cylinder with stuck piston so I milled it out and honed cylinder, I had to open it up to .631 to remove all the corrosion, is .006 over too much?
According to the service manual, the limit is 15.925mm or 0.6270 inches ID. This would make 0.631 too much.
Re: Front master cylinder bore size
Posted: Sat Apr 11, 2015 9:13 am
by mike209
Thanks EMS, I tried to save it but was too corroded, now I have to hunt for good one
Re: Front master cylinder bore size
Posted: Sat Apr 11, 2015 10:05 am
by NobleHops
mike209 wrote:Thanks EMS, I tried to save it but was too corroded, now I have to hunt for good one
There is a place not far from you called Apple Hydraulics that can resleeve yours. They did mine, and it was perfect and will be for eternity, but they nicked up the MC a lot in the process. Alternatively, you could prowl eBay for something like this, which is cheaper than a rebuild kit!
http://www.ebay.com/itm/Hydraulic-Twin- ... d8&vxp=mtr
P.S. If you do, I'll buy your rebuild kit
Re: Front master cylinder bore size
Posted: Sat Apr 11, 2015 12:31 pm
by mike209
Nils, just checked their website, they are asking $95, I think I will take my chance and resleeve it myself,at work I have access to all machinery and tooling necessary for that job, will post result here when done
Re: Front master cylinder bore size
Posted: Sat Apr 11, 2015 10:31 pm
by NobleHops
mike209 wrote:Nils, just checked their website, they are asking $95, I think I will take my chance and resleeve it myself,at work I have access to all machinery and tooling necessary for that job, will post result here when done
Oh REALLY MIke?
Super interesting.
How would you like to tool up and do a bunch at the same time?
Lemme go hunt up my thread from when I had this done, I think I have some photos and notes that you might find useful.
Re: Front master cylinder bore size
Posted: Sat Apr 11, 2015 10:34 pm
by NobleHops
Here you go:
viewtopic.php?f=50&t=6393&p=47785&hilit=resleeve#p47785
What I should have said prior was "How would you like to tool up and do a bunch at the same time
for fun and profit?"
I think you'd have a few takers if you did.
N.