Search found 18 matches

by Grayjay66
Sun Aug 25, 2019 1:00 pm
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

It has been interesting in researching this problem. We all including me think there should not be a problem but there is. The most common presentation of the most common problems have all been checked and eliminated as to possible cause. The brakes are not fully releasing. My analogy is place a boo...
by Grayjay66
Sun Aug 25, 2019 8:00 am
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

Ah but what is your guess as to what is the cause given the hydraulics are working with the Dunlops. And the Zeus open to nothing but atmospheric pressure does not result in a no drag fully released condition. The square seals are the only thing that cause the Zeus pistons to retract, so not much el...
by Grayjay66
Sat Aug 24, 2019 4:54 am
Forum: Series 1
Topic: Zeus Callipers
Replies: 8
Views: 2720
United States of America

Re: Zeus Callipers

These posts are several yrs old now but I have a current problem. My original Dunlops have a spring retraction and so when the brake is released the Pistons retract pulling the pads away from the disc via the "knob" that rides in the slot in the brake pad. I installed new 2 1/8 Zeus which force the ...
by Grayjay66
Sat Aug 24, 2019 4:36 am
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

Would not recommend buying parts from Steubenville Ohio. Too many other reputable shops selling the same stuff. Really odd. We car people rely on these companies and in turn they make a living from our hobby/ interest. Why screw your customer? Over the years I've had several instances of parts not m...
by Grayjay66
Tue Aug 13, 2019 12:30 am
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

I thought the problem could be related to worn pads . I put new ones in with no resulting change. Pads remain in contact with the disc after brakes are applied and released. Using my trusty fish scale it looks like the friction can be overcome with 2-3 pounds constant force applied at the tire tread...
by Grayjay66
Wed Jul 31, 2019 9:48 am
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

I have been in contact with Zeus. They have been very responsive.

One last possibility was Dunlop spring return putting enough pressure to lock up Zeus. Eliminated this by disconnecting brake line inlet to Zeus side. Disc still locked up.

Returning set now for their eval.
by Grayjay66
Fri Jul 26, 2019 4:59 am
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

Thank you for the reply. Irrespective of any other problems with master cyliner or flex lines it would seem opening the Zeus bleed nipple will release any hydraulic pressure on the Pistons and allow the wheel to turn. They remain stuck .. So the Zeus Pistons are sticking in an unpressured system but...
by Grayjay66
Thu Jul 25, 2019 7:35 pm
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

Spoke too soon. Vacuum leaks were not the fix I hoped for.

Fundamental question is why after opening the bleed nipple the brakes remain locked up, pistons not releasing force on pads?
by Grayjay66
Tue Jul 23, 2019 11:44 pm
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

I redid all diagnostic checks and found this problem is NOT the zeus brakes.

Vacuum system has some serious problems and likely affecting the reaction valve.

Will post again when I've done fixes.
by Grayjay66
Sat Jul 13, 2019 5:02 pm
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

I agree about not mixing components although in this case piston diameter and pad area are the same so not a big concern for a short test drive. I viewed it as a bit of an experiment to drive it with Zeus on one side and Dunlop on the other just to see if it did result in pull to one side or the oth...
by Grayjay66
Sat Jul 13, 2019 1:51 pm
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

Also to clarify, the Zeus are single piston 2 1/8th as are the original dunlops.
by Grayjay66
Sat Jul 13, 2019 1:22 pm
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

The Zeus piston not retracting on the left front while the dunlops are on the right front, has nothing to do with the piston manufacturer being mixed . I intended to change out both sides but was testing the Zeus before committing to the second pair, and was not concerned about the test drive as the...
by Grayjay66
Sat Jul 13, 2019 9:38 am
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Re: Zeus single pot. Pistons not retracting

Brand shiny new Zeus. Original du lops on right side. I bought a second pair of Zeus but now will not put on until this is resolved.
by Grayjay66
Sat Jul 13, 2019 9:22 am
Forum: Series 1
Topic: Zeus single pot. Pistons not retracting
Replies: 25
Views: 998
United States of America

Zeus single pot. Pistons not retracting

66 fhc, I replaced my original front left calipers with Zeus single pot stainless leaving original Dunlop on right front. Simple bolt off and then Zeus bolt on . All seemed well. Drove around 6 miles and found Zeus side hub warm. Thinking I had a bearing problem, put the car up, took tire off and fo...
by Grayjay66
Wed Feb 13, 2019 6:35 am
Forum: Series 1
Topic: Engine chugs when power is taken off
Replies: 10
Views: 823
United States of America

Re: Engine chugs when power is taken off

Mine 66 would start obviously misfiring and keep misfiring. Finally realized front float bowl ball bearing in the jet was sticking and front carb was starving. Pipe brushed and all well until A month ago started running rough again, this time it was a plugged front float carb intake screen. Although...
by Grayjay66
Mon Jan 28, 2019 4:14 am
Forum: Series 1
Topic: Passenger door remote lever will not move. 66 FHC
Replies: 6
Views: 448
United States of America

Re: Passenger door remote lever will not move. 66 FHC

Jeremy, thank you for the photo. The riveted panels are exactly what is on my 66. I drilled the rivets on the larger panel and was able to remove the mechanism. Added machine oil and the handle is turning again. The riveted panel was rusting on the inside and also the door skin in one place where it...
by Grayjay66
Sun Jan 27, 2019 2:30 pm
Forum: Series 1
Topic: Passenger door remote lever will not move. 66 FHC
Replies: 6
Views: 448
United States of America

Re: Passenger door remote lever will not move. 66 FHC

Thank you, I have the armrest off along with the facia and handles. What is interesting is the lower two access holes in the door have sheet metal covers riveted in place. So I will need to remove those to be able to remove the handle mechanism. I

All projects expand to exceed time available.
by Grayjay66
Sat Jan 26, 2019 1:40 am
Forum: Series 1
Topic: Passenger door remote lever will not move. 66 FHC
Replies: 6
Views: 448
United States of America

Passenger door remote lever will not move. 66 FHC

The passenger door (lhd)Opens and locks from the outside however, from inside the remote lever will not move in any direction trapping my unsuspecting passenger. Feels and sounds as though hanging up on something at the lever end not the lock/latch end. Sudden occurrence after getting ready for Scot...