fisch Posted August 31, 2008 Report Share Posted August 31, 2008 Hey guys do I want the 13/16, or the 3/4 inch bore rear wheel cylinders for my 71 521? Or does it make a difference? Thanks! Quote Link to comment
fisch Posted August 31, 2008 Author Report Share Posted August 31, 2008 Ahhh tried the search function, got my answer. Found out it doesn't really matter. only that the bigger the cylinder the more braking power. And we are talking 1/16 diff, so it shouldn't be that different. Quote Link to comment
datzenmike Posted August 31, 2008 Report Share Posted August 31, 2008 A larger cylinder will require more fluid to move it than a smaller one. The pedal may move a tiny fraction farther down and the rears may lock up sooner now because of increased pressure on the brake shoes. It might also not be noticeable. You could always back off the rear adjusters to allow the fronts to do more work to even it out. Morning Scott. Quote Link to comment
fisch Posted August 31, 2008 Author Report Share Posted August 31, 2008 Mornin' Mike! I just double checked the factory manual and it lists a 13/16 as the propper size, so i reckon that is what I will go for. Man, none of the auto stores in a 4 town are have them, Not NApa, not auto zone, not Advanced auto. So it looks like Rock Auto to the rescue. And a long shipping wait. Why is it that I always decide to order things on Sun and or on hollidays? I know, because those are the days I actually work on such things and find out what I need to order. I am not a patient guy! At this point it won't even be processed till tuesday. I want it today! Quote Link to comment
Bugeye Posted August 31, 2008 Report Share Posted August 31, 2008 Mornin' Mike! I just double checked the factory manual and it lists a 13/16 as the propper size, so i reckon that is what I will go for. Man, none of the auto stores in a 4 town are have them, Not NApa, not auto zone, not Advanced auto. So it looks like Rock Auto to the rescue. And a long shipping wait. Why is it that I always decide to order things on Sun and or on hollidays? I know, because those are the days I actually work on such things and find out what I need to order. I am not a patient guy! At this point it won't even be processed till tuesday. I want it today! why not rebuild them? Quote Link to comment
fisch Posted August 31, 2008 Author Report Share Posted August 31, 2008 ^THuoght about it Bugeye, and if anyone local had rebuild kits I might have. But rock auto has them right now for not much more than the rebuild kits! And though I have not seen what they look like under the drums yet, the way the front one was corroded makes me doubt them even more. So why not just replace! Quote Link to comment
Bugeye Posted August 31, 2008 Report Share Posted August 31, 2008 ^THuoght about it Bugeye, and if anyone local had rebuild kits I might have. But rock auto has them right now for not much more than the rebuild kits! And though I have not seen what they look like under the drums yet, the way the front one was corroded makes me doubt them even more. So why not just replace! this is true, just don't brake the chisel this time:lol: Quote Link to comment
slodat Posted August 31, 2008 Report Share Posted August 31, 2008 Check partsamerica.com. They have the 3/4" (p/n: WC37208) in stock in my area. Quote Link to comment
fisch Posted August 31, 2008 Author Report Share Posted August 31, 2008 Thanks slodat. I've never tried that site before. Pretty cool! Alas according to their search, no one around here has them. Gotta love the N. east! (Not!) I think because Datsuns are zillon times more rare on the right coast, no one stocks parts for them. Quote Link to comment
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