Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Bulldog67 on May 18, 2012, 07:30:01 PM

Title: Molotov brake issue
Post by: Bulldog67 on May 18, 2012, 07:30:01 PM
So, set off this afternoon to take the Chief to the sparky dood, and after about 6 miles the brakes locked on, so parked up and waited, and set off again, 2 miles later first gear was the only option so stopped again.

This pattern continued until I got close to my bro house and as the truck was gettin close to overheatin as I was forcing to fight against the locked on brakes I intentionally cut the corner of the road (v close to overheat by this point) and kazaammm - the brakes suddenly unlocked

So what the WTF is goin on?

I never made it to the sparky, altho he has offered to fix the brakes as well if i can get it there. This happened before on the way to Clyro last year but it has been ok since then.

The only other connected prob that I know of is that the brake pedal goes rock hard after a mile or so.

Help  :003:

Cheers gents  :greggmo:
Title: Re: Re: Molotov brake issue
Post by: Dave69 on May 18, 2012, 07:47:26 PM
Normal problem for the xjs' normally likened to misshaped pistons which involves them beimg replaced

Posted from my phone as its quicker than the pc connection
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 18, 2012, 08:29:45 PM
is the binding and the rock solid pedal connected?
Title: Re: Molotov brake issue
Post by: Panic mechanic! on May 18, 2012, 09:11:18 PM
if you have let it stand for a while the pistons could have been stuck in the cylinders/calipers and have now freed themselves off,if you still have a rock hard pedal it can be down to the piston in the master cylinder sticking as well. You might need to go thru the whole hydraulic system to find the problem.You might get away with renewing all the fluid in the system tho.
Title: Re: Molotov brake issue
Post by: dieselj20 on May 18, 2012, 09:39:20 PM
pistons or rubber brake hose
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 18, 2012, 09:44:06 PM
cheers, looks like a call to lightys again
Title: Re: Molotov brake issue
Post by: Bubba on May 18, 2012, 11:34:21 PM
brake hoses the front flexys
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 19, 2012, 06:09:54 AM
hmmmm to be fair you had told me about 6 months ago the cause of the rock hard pedal :icon_redface:
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 21, 2012, 07:05:54 PM
just done a 10 mile trip and all is well again  :017:

how exactly does this work - can I risk the 40 mile trip to my sparky?
Title: Re: Molotov brake issue
Post by: isle of man on May 21, 2012, 07:07:46 PM
Change the brake fluid....
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 21, 2012, 07:15:14 PM
The sparky is gonna overhaul them, so will make sure he does.

The brakes jammed on months ago, then was ok, then back on again last friday, and now off again. I suppose Im thinkin it will be sods law that they will jam on again as soon as i set off on a long trip
Title: Re: Molotov brake issue
Post by: dieselj20 on May 21, 2012, 07:37:16 PM
check the brake peddle is returning all the way
Title: Re: Molotov brake issue
Post by: Bubba on May 21, 2012, 10:19:20 PM
if its a right hand conversion the brake rod that goes across behind the dash can start to sieze
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 21, 2012, 11:04:49 PM
lot of things then really - im gonna take a chance and see if i can get it to the sparky, worse comes to worse the AA will just have to take it over there instead
Title: Re: Molotov brake issue
Post by: jeepcj on May 22, 2012, 05:34:46 PM
lot of things then really - im gonna take a chance and see if i can get it to the sparky, worse comes to worse the AA will just have to take it over there instead
So, set off this afternoon to take the Chief to the sparky dood, and after about 6 miles the brakes locked on, so parked up and waited, and set off again, 2 miles later first gear was the only option so stopped again.

This pattern continued until I got close to my bro house and as the truck was gettin close to overheatin as I was forcing to fight against the locked on brakes I intentionally cut the corner of the road (v close to overheat by this point) and kazaammm - the brakes suddenly unlocked

So what the WTF is goin on?

I never made it to the sparky, altho he has offered to fix the brakes as well if i can get it there. This happened before on the way to Clyro last year but it has been ok since then.

The only other connected prob that I know of is that the brake pedal goes rock hard after a mile or so.

Help  :003:

Cheers gents  :greggmo:
If you cant sought it out at home, take it on a trailer, sounds like a recipe for disaster taking down the road like that
Title: Re: Molotov brake issue
Post by: dtooth on May 22, 2012, 06:03:02 PM
has the master cylinder and servo been apart from each other at any point or changed ?

had a similar problem after doing ssbc conversion on a tj the pin/rod between the two needed 1/4 turn adjustment as it stopped the fluid returning properly causeing a lock after a few miles .
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 22, 2012, 06:27:16 PM
they may have been as the owner before me was meant to have had the brake system overhauled, so will keep it in mind, cheers
Title: Re: Molotov brake issue
Post by: Bulldog67 on May 25, 2012, 05:42:48 PM
made it to the Sparky, 40 miles no probs except runnin bit hot  :icon_super: