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Author Topic: Brake booster restoration  (Read 3642 times)
Anders Dinsen
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« on: November 12, 2008, 03:03:44 pm »

I have noticed that the brake booster leaks a small amount of air into the manifold. This is more apparant on the sidedraught configuration which I have now. I'm not sure whether it's allowed to leak a little or not, but I replaced my old one with a new (used) one and has checked the hoses and pipe too. The new one is still leaking a bit, however, so I have now decided to restore my old one.

There's a procedure described in the workshop manual, and I have managed to take it apart - it's not that difficult - but before I go on much further, I'd like to know if any of you guys have been through the job.

Here's a photo of the parts. As you can see, the internals look very well despite the rusty external appearance.

« Last Edit: November 12, 2008, 06:55:23 pm by Anders Dinsen » Logged

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« Reply #1 on: November 13, 2008, 12:59:03 am »

He he, looks like mine that one Anders, I think some prev owner spilled alot of brakefluid on it when they changed from hoses to pipes, if you have a GOOD way of getting it cleaned, please lett me know.  Wink
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Anders Dinsen
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« Reply #2 on: November 13, 2008, 08:36:43 am »

He he, looks like mine that one Anders, I think some prev owner spilled alot of brakefluid on it when they changed from hoses to pipes, if you have a GOOD way of getting it cleaned, please lett me know.  Wink

Exterior is rusty and needs a good treatment with a rotating steel brush. Then a thorough painting with Hammerite. The internals should just be greased with silicone grease (it shouldn't dry out the rubber or be washed away from the petrol fumes inside) and it all goes back together

At least that's my plan...

- Anders
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'82 Murena 2.2 prep 142
'01 Grand Espace 24v
'08 Smart Fortwo 0,8 cdi
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« Reply #3 on: November 13, 2008, 11:42:37 am »

do you have any idea on how Jan/Philbert got his part so unbelievebly clean...? looked over his photos and I doubt if they where done with rotary action. Chemical perhaps, but what ever could take away all the discoloring too? Media blasting using glass og nutshells would take care of that, and not damage the metal, but what would be a hell of a job though.....
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2010 Mazda 3 1,6  Diesel Gunmetal Blue
1983 Matra Murena 2.2 Platine
50cc Pocketbike
IPSC shooter
Anders Dinsen
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« Reply #4 on: November 13, 2008, 05:03:42 pm »

do you have any idea on how Jan/Philbert got his part so unbelievebly clean...? looked over his photos and I doubt if they where done with rotary action. Chemical perhaps, but what ever could take away all the discoloring too? Media blasting using glass og nutshells would take care of that, and not damage the metal, but what would be a hell of a job though.....

They may have sand blasted it, or just used a rotating steel brush. Then painted with Hammerite - probably spray painted.
But I'll ask next time I see Jan.

- Anders
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'08 Smart Fortwo 0,8 cdi
murramor
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« Reply #5 on: November 13, 2008, 10:06:43 pm »

Soda blasting gives an incredibly smooth finish and there is no need for masking glass and rubber!  I intend to get the underside of my car done as soon as I can get the time.
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Ron Murrell
Sydney, Australia
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