Quote:
Originally Posted by Toro
I really appreciate the help. Yes, it was working before but the MC was worn out and needed to be replaced.., that's when all of this was discovered. The depth on the new MC is the same as the old one that was removed, but I will still measure for fitment. A few more rookie questions, for adjustment, it appears the threads on the rod are for that purpose? Also, it seems the pushrod is just sitting on a rod inside the booster and not actually secured, meaning that I can pull the rod out towards front and it comes off only being held in by the flange and the grommet on the booster. To put it back you sort of have to feel around until it slides back in place. Does that sound normal? And finally, is there supposed to be an o-ring or gasket that goes between the flange on the MC and the booster? Old one didn't have one, and there wasn't one in the new box.
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You're asking good questions, not rookie at all
- yes, the threaded end of the pushrod is for making minor rod length adjustments, if needed.
- good observation on the pushrod seeming "unattached" to the booster - but that is normal, it's how they are made, just center it and stuff it in there.
- as for the o-ring or gasket between the mc and booster - very good question (because the flat "groove" would sure make one think there would be a seal there...) but, no there is not an external o-ring or gasket that that goes in between the mc and booster (at least I've never seen one on any mc's I've removed). But there should be no need for one. Brake fluid is retained in the mc by the cup seal on the mc piston (see part #6). Vacuum seal is provided by an internal o-ring (see part #7). Would be worth knowing if anyone else has ever seen an "external" seal or o-ring between mc and booster(?) Hope that helps