Brake Compensator/Proportioning Valve Removal

Maintenance advice to keep your Spider in shape.
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NSDave

Brake Compensator/Proportioning Valve Removal

Post by NSDave »

Well, I walked out to the garage the other day, and what do I see but another small puddle under the Spider (I really do need to remove the engine and replace some seals, a good winter project). The newest puddle is under the rear of the car, the L/H side of the panhard rod seems to be leaking...that's weird :D
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no, the panhard rod can't be leaking, wasn't the caliper either, wait... what's this? :o
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or rather, what was it.
I didn't know where the valve was until it started leaking. Figured since it wasn't the first proportioning valve I've had trouble with and bypassed (older Toyota 1/4 tons), I'd do it again.
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Initial (brief road test) impressions, I'd do it again.
As always, YMMV :) .
ClarkTheShark

Re: Brake Compensator/Proportioning Valve Removal

Post by ClarkTheShark »

i have really been wanting to do this. so you didnt have to buy any sort of bypass hose?
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kmead
Posts: 1069
Joined: Sat Aug 02, 2008 9:24 pm
Your car is a: 1969 850 SC 1970 124 SC 85 X19
Location: Grand Rapids, MI

Re: Brake Compensator/Proportioning Valve Removal

Post by kmead »

I would strongly suggest you not perform this modification. The valve is there for a very good reason, there have been numerous posts on this so I won't go into chapter and verse about it aside from saying:

Rear brake lockup in an emergency stop (the primary use mode where this valve is ever used) when you have full front suspension compression with lots of weight transfer to the front wheels and very little weight or traction from the rear, is not a a situation you want to find yourself in.
Karl

1969 Fiat 850 Sports Coupe
1970 Fiat 124 Sports Coupe
1985 Bertone X1/9
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