Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,898
Thanks: 1 times
Was thanked: 558 time(s) in 533 post(s)
|
Guys
Have a little problem (I think).
I took the Overlander onto Stockton beach yesterday. Basically to get a photo of the old Sygna wreck with the new Pasha Bulker wreck in the background. When I came off the beach the brakes felt a little funny. Thought it's just a bit of water in the drums, but it's still doing it.
What it's doing is brakes feel spongy, and I need heaps more pedal now than before. Still stops OK, but different. When pulling up it makes a small "hissing" sound from what I think is the rears. I thought this might be a vacuum leak at the booster but it's not there with the car stopped. I've felt the pedal like this before, but at that time the rears were very low on fluid, so I topped it up and bled it and all was fine. It hasn't been losing any fluid and I can't see any leaks anywhere or damaged hoses/lines. The only other symptom I can think of is the handbrake started playing up a week or so ago where it is difficult to disengage it for the last inch or so to turn off the light on the dash.
Brakes are disc front, drum rear - massive big things at all corners. Basically the same as J20 Jeep, K1500 Suburban, F250 etc. Standard Holden booster, brake lines and handbrake setup. F100 master cylinder (was stock HZ Holden 1" but previous owner changed it).
Any ideas? I'm leaning towards something at the rear, but I suppose i'll have to remove the drums and see. Maybe crap (sand etc) in the drums?
I did have to drive it through some fresh water on the way onto the beach and off again, but only for 15 metres or so and it was only sill depth for a metre or two (probably halfway up the doors on a normal tonner). It did get nice and hot on the beach - right to the top of the GTS guage (almost in the red), but looking and feeling the engine I don't believe it to be accurate as I could actually touch the front of the 5-row radiator and other parts without being too uncomfortable. Can a hot engine affect the booster diaphragm?
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 12/10/2005(UTC)
Posts: 495
|
Byron, you have to remember that there is more vacuum at low idle than anything above 1200 or so RPM. This might be why you cannot hear a leak at the booster when fully stopped and at idle speed. You could try pressurising the booster and fitting a gauge
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 26/08/2006(UTC)
Posts: 671
Thanks: 1 times
Was thanked: 1 time(s) in 1 post(s)
|
Sand is a great abrasive, so they may be just worn a bit more. But if you were having handbrake problems before that it may have a physical problem so it sounds like a wheels off to me.
|
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
I once had a problem with the brake pad material separating, like when plywood gets wet and the different plies separate, I would suggest you need to look at the pads.
Having been wet may have been the last straw.
|
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
