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The Hydrovac in the M-8 is the single line series two . So, it's set up right right. That's the same setup as the !/2 track. The one in the M-20 is the early series two with two lines, smaller, with less psi to the wheel cyls. The only thing I can say is that the Hydrovac is stuck at the vacuum...

When Craig checks the MC have him check for two lines coming out of it. A large line at the end where you'd expect one, and a, somewhat smaller one, off the side. If the MC has been changed and the Hydrovac is original, that's the problem. The early series 2 Hydrovac needed that pilot line to...

Good point, You did bleed em all didn't you? A pressure bleeder would sure help. Breakes on a M-20 are almost as fun to bleed as the accelorator hyd. system.

Will. Is it the stock MC. Just thinking the size of the cyl. might be different causing a volume change. Are the springs installed between the break cyls cups??

You are right the G-102 is not the same as the G-136, G176, however they are interchangeable. The M-20 and M-8 are the same and use a pilot line from the MC where as the G102 does not. The cyl. is a little larger on the M-8 or M-20 but the G102 has a higher pressure rating. It worked wonders...

Will, Did you do anything to the Hydrovac? I replaced mine with one out of a Halftrack, same except fpr the pilot line and you get higher pressure. It sounds like the MC is working but not the Hydrovac. I did the same as you with the pistons, the orig have an O ring around them but I replaced...