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Marlin Sportster, Cabrio, Berlinetta and Roadster builds Enthused or Confused about your vintage Marlin build? Ask away here or show off your build.

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Old 16th September 2015, 13:31
Element Element is offline
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Join Date: Sep 2015
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Default Roadster Brake Bleeding Problem

Hi Folks, just joined and looking for some valued advice..
My Dad has had a Roadster (with Fiat 2.0 DOHC engine & Marina suspension / brakes ) for 12 or so yrs. The last 8 of which it has sat still, under its cover. On offering it to me if I could get it running I have spent a few days getting things sorted. Engine is now running, suspension bushes replaced (previous poly ones disintegrated).
Then came the brakes… given the situation I figured it would be a good idea to replace the fluid but it is 20+ yrs since I have changed brake fluid and I didn’t follow the right procedure as in the Marina Haynes book (that said I don’t think it would have made a lot of difference). With someone else inside pressing the pedal, tube connected to the front right (offside) bleed nipple into a jar, cover off the fluid reservoir, we opened the bleed screw and initially 2-3” of old fluid came out into the tube but we left it opened without pressing the pedal up and down briefly and we believe air (small amount likely) entered into the calliper – because despite closing off the bleed screw now the pedal feels as though there’s no pressure at all. We have since tried repeatedly to bleed the system on 3 corners now but with the condition is the same; no fluid or air comes out any tube and the pedal offers no resistance; it just springs back up. The fluid in the reservoir remains the same, no change. The Haynes Marina book offers a pretty simplified procedure for bleeding the system but it offers no suggestion of what to do if the pedal doesn’t enable you to pump!
I suspect that the fault lies with the master cylinder but would appreciate a second opinion of why we can’t pump the fluid out in the usual fashion. I have read of bleed kits that connect to a spare tyre to provide pressure & you fill a container of fluid and connect that to the reservoir (Screwfix sell them) – do you think it would help/work in this case or am I best to look more at the master cylinder?

The car is in South Wales; I live in Scotland & the original plan was for me to fix it & drive it north, but it's going nowhere at the moment..

Thanks for any advice you can offer, I might be back here a few times before long!

Last edited by Element; 16th September 2015 at 13:34..
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