Rat Rod (small update)

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Re: Rat Rod (b*%§# brakes)

Post by AnotherTim » Wed Feb 22, 2017 4:15 pm

I don't know... I'm far from being an expert, but if it were me I'd go back to basics. Check you don't have any leaks anywhere. Ditch the brake bleeding tool and just use a bit of tube... submerge the end of the bleed tube into a bottle of brake fluid so it can't suck air back up, fill the reservoir, pump the brake peddle until fluid is clearly making it's way to the rear bleed nipple and into the bottle.

I'm always a bit suspicious of special purpose tools personally. They just add more possible points of fault to the process.



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Re: Rat Rod (b*%§# brakes)

Post by Oldconn » Wed Feb 22, 2017 4:17 pm

Steve, I had the same frustrating experience with same (or similar) equipment. Eventually I did it the old-fashioned way with an assistant pumping the pedal. I came to the conclusion that the air which seemed to come out for ever,using the vacuum device,was in fact just coming around the bleed screw when slackened off.


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Re: Rat Rod (b*%§# brakes)

Post by AnotherTim » Wed Feb 22, 2017 4:20 pm

Yeah exactly. For the brakes to work the pedal needs to be pushing the fluid. A little gizmo trying to suck the fluid isn't really working with the action of the brake system.

You don't even need a pedal pusher if you make sure the bleed hose in well submerged in a container of fluid. You just have to keep running round to see whether it's done it.

Edit: Whilst also topping up the reservoir to make sure it doesn't empty, which wouldn't be great! :D



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Re: Rat Rod (b*%§# brakes)

Post by AJL Electronics » Wed Feb 22, 2017 4:31 pm

Take out the bleed nipple and smear a little grease on the threads. Put it back in and only crack it open half a turn, if that. Try it again. If all else fails, with the suction on, give the pedal a few pumps to get the fluid through. Then revert to a pipe in a jar!


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Re: Rat Rod (b*%§# brakes)

Post by AnotherTim » Wed Feb 22, 2017 4:45 pm

Many of life's challenges can be overcome by simply placing a pipe in a jar.



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Re: Rat Rod (b*%§# brakes)

Post by AJL Electronics » Wed Feb 22, 2017 4:51 pm

Wouldn't that be rather painful?


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Re: Rat Rod (b*%§# brakes)

Post by Gillsfan » Wed Feb 22, 2017 5:04 pm

Thank you for the suggestions. I tried greasing my nipple which didn't seem to make any difference. I removed the suction gun part of the kit effectively making it a tube in a jar didn't work either. Tried the tube in a jar on the front brakes still didn't work. What's now bothering me is even with all the nipples closed there is no resistance in the brake pedal. Surely as I pump the pedal even full of air I should get some resistance?
Last edited by Gillsfan on Wed Feb 22, 2017 5:05 pm, edited 1 time in total.


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Re: Rat Rod (b*%§# brakes)

Post by Gillsfan » Wed Feb 22, 2017 5:04 pm

I've had a look and no obvious sign of a leak.


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Re: Rat Rod (b*%§# brakes)

Post by Roger Pennington » Wed Feb 22, 2017 5:14 pm

Personally, I find those vacuum brake bleeders are great if you've got residual bubbles of trapped air (because air wants to travel towards a vacuum), but when you want to shift a large volume of fluid to fill the system (or flush it through) then an Eezibleed works much better, and is much less work. :)


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Re: Rat Rod (b*%§# brakes)

Post by Gillsfan » Wed Feb 22, 2017 5:21 pm



Steve

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Re: Rat Rod (b*%§# brakes)

Post by Roger Pennington » Wed Feb 22, 2017 5:34 pm

Yes, that's the thing.
Just one thing to bear in mind - don't attach it to a tyre at full pressure, use about 12 psi. otherwise there's a risk of fluid leaks at the M/C cap.


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Re: Rat Rod (b*%§# brakes)

Post by MarkHawkins » Wed Feb 22, 2017 5:51 pm

I tend to use the simple easy bleed kit - a plastic bottle with a pipe and a one way valve - no air pressure involved. I've also found that leaving the car overnight can do the trick sometimes.


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Re: Rat Rod (b*%§# brakes)

Post by Gillsfan » Wed Feb 22, 2017 6:04 pm

Leaving car over night? Nipples open?


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Re: Rat Rod (b*%§# brakes)

Post by Oldconn » Wed Feb 22, 2017 6:24 pm

Does your car have a differential pressure regulator in the system, somewhere near the front bulkhead, to provide more pressure to the front brakes ? Try cracking the olive-joints open at the valve and pump until you get fluid coming out. Then close up again, and try bleeding the front brakes first, then the rear ones.


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Re: Rat Rod (b*%§# brakes)

Post by MarkHawkins » Wed Feb 22, 2017 6:30 pm

Gillsfan wrote:Leaving car over night? Nipples open?
No .. just leaving it so bubbles can find their way up out to the top of the master cylinder.

Is there a remote servo involved here?


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ex 1984/85 SS1 number 0007 (1300)

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