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Go Back   Madabout Kitcars Forum > Mad Build Area > Marlin Sportster, Cabrio, Berlinetta and Roadster builds

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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  #41  
Old 11th November 2011, 18:20
Mike Mike is offline
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GOOster and Vikki have taken delivery of the Dual 7" Servo and a "Long" 3/8" Clevis for road going trials.
Thanks Jason.



We must now wait and see.........................

PS - I got to see Vikki in the flesh today - a very nice example indeed, even without paint - and her seats are NOT pink!
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  #42  
Old 11th November 2011, 21:25
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Have just found this link via Google.

Speedway Motors in the USA do a Stainless Steel version!

http://www.speedwaymotors.com/Dual-D...ter,37181.html
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  #43  
Old 13th November 2011, 13:34
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Well, it fits. I haven't got it completely attached yet, as I've had to come in for lunch (and some pills - I've got a stinking headache for some reason)

I'll have another look at it later.
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  #44  
Old 13th November 2011, 18:14
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And it's now all hooked up:





I opened up the mounting holes on the pedal box with my step drill, so it was just an unbolt and remove the old servo and bolt in the new one. The long clevis works a treat.

I will need longer fluid feed lines, if this all works out, as I unbolted the reservoir and it's just resting up against the bulkhead.

The elbow / one way valve on the servo needed to be removed, so my vac hose and elbow could be connected. Unfortunately, in removing the provided elbow it came apart - so I need to replace that for you, Mike.

I've tested for leaks, spraying the vac entry and the adaptor plate / servo / cylinder interfaces with brake cleaner, and no issues there.

Now all I need to do is try it out on the road.
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  #45  
Old 13th November 2011, 19:26
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Jason

You should be on X Factor -


"and the result is.............................................:ev il:
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  #46  
Old 13th November 2011, 19:40
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Looking good....

The stepped design of that servo seems to fit really well in the available space.
I see you've fitted heat protection to the brake reservoir supply hoses which is a good idea, given that it above the exhaust.
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  #47  
Old 14th November 2011, 08:39
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Quote:
Originally Posted by GreatOldOne View Post
And it's now all hooked up:

The elbow / one way valve on the servo needed to be removed, so my vac hose and elbow could be connected. Unfortunately, in removing the provided elbow it came apart - so I need to replace that for you, Mike.
Jason

Will that be necessary? - if you have used the Metro elbow, I should be able to do the same? I was also planning to use the BMW non return elbow away from the inlet manifold, as it comes out the back of the inlet manifold.

Mike
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  #48  
Old 14th November 2011, 12:04
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No - the provided one way valve / elbow on the servo isn't required - I just feel bad for destroying it...

BTW - the elbow I have isn't the metro one. I never got one with my unit. I just used a (IIRC) 10mm 90 degree elbow and straight vac tube all the way back to the BMW one way valve and 'air pump' attached to the throttle body.
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  #49  
Old 14th November 2011, 20:00
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I am sure we are all holding our breath to see the results.
Don't have flexible pipes myself they are all copper tubes, so will need a bit of work to make it all fit but if results are good, then it will be worth it.
Good luck Jason.
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  #50  
Old 14th November 2011, 20:55
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Quote:
Originally Posted by denniswpearce View Post
I am sure we are all holding our breath to see the results.
Don't have flexible pipes myself they are all copper tubes, so will need a bit of work to make it all fit but if results are good, then it will be worth it.
Good luck Jason.
Dermott O'Leary has nothing on Jason, - he is keeping us all in suspense.

I have solid brake lines, but found I could manipulate mine to move forward 2" without too much difficulty: and because I have the reservoir mounted directly on the master cylinder it is almost a straight swap.

Put us out of our misery Jason..........................What's the verdict ?????
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  #51  
Old 14th November 2011, 21:26
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Lucky you Mike, don't think mine will be that easy
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  #52  
Old 15th November 2011, 08:47
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The verdict is..... still pending. That headache I had on Sunday was the precursor to a full on gastric flu type thing. I haven't felt that bad in years!

I'm off work at the moment. If I feel a little less dizzy (all I've had to eat in 24 hours is two dry crackers... Blood sugar must be low) later today, I'll take Vikki for a spin round the block and report back.
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  #53  
Old 15th November 2011, 09:07
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Quote:
Originally Posted by GreatOldOne View Post
The verdict is..... still pending. That headache I had on Sunday was the precursor to a full on gastric flu type thing. I haven't felt that bad in years!

I'm off work at the moment. If I feel a little less dizzy (all I've had to eat in 24 hours is two dry crackers... Blood sugar must be low) later today, I'll take Vikki for a spin round the block and report back.

Sorry Jason - don't rush it if you are not well. Its just me being impatient.

Hope you improve soon.

Mike
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  #54  
Old 15th November 2011, 10:41
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Ok - sugary cereal is the universal panacea. Felt a lot better after breakfast, so went out for a blast.

And the result is....
























right after these words from our sponsor.
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  #55  
Old 15th November 2011, 12:07
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That's one helluva long commercial break - wouldn't be wanting to pay for that one...............
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  #56  
Old 15th November 2011, 12:19
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Well, I had to wait for you to comment. You are our sponsor, after all.

Right - here's the bottom line. Braking is MUCH improved.

There's a lot more feel in the pedal to my mind - you know how much braking effort is going in from the position of the pedal, not the muscles on your leg bulging under the strain.

You also get the feel that the car is going to stop in time, none of that "pray and press harder" when you have to anchor up rapidly. Initial bite is much more in line with my daily drivers.

In fact in a drag test on an empty road, I managed to lock the wheels by standing on the brakes - something I have never seen outside the IVA station...

So - I declare it a complete success. Gentlemen, start your credit cards!
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  #57  
Old 15th November 2011, 12:30
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[QUOTE=GreatOldOne;24134There's a lot more feel in the pedal to my mind - you know how much braking effort is going in from the position of the pedal, not the muscles on your leg bulging under the strain.
[/QUOTE]

That's exactly how mine feels atm. Its like pressing on a brick wall....

So - it looks like I will be going that way. Just have to find someone with them is stock. I wonder who ACTUALLY makes them.....

Robin
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  #58  
Old 15th November 2011, 13:18
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Quote:
Originally Posted by GreatOldOne View Post
Well, I had to wait for you to comment. You are our sponsor, after all.

Right - here's the bottom line. Braking is MUCH improved.

There's a lot more feel in the pedal to my mind - you know how much braking effort is going in from the position of the pedal, not the muscles on your leg bulging under the strain.

You also get the feel that the car is going to stop in time, none of that "pray and press harder" when you have to anchor up rapidly. Initial bite is much more in line with my daily drivers.

In fact in a drag test on an empty road, I managed to lock the wheels by standing on the brakes - something I have never seen outside the IVA station...

So - I declare it a complete success. Gentlemen, start your credit cards!
Jason


Many thanks for being the guinea pig and testing this out. It sounds like very good news.

Quick question - did you make a seal between the servo and master cylinder? - I have a hunch it is not necessary, which makes the adaptor slightly easier to make, as we can do away with the O-ring and recess.
Would it be worth trying without the O - ring to prove that it still works?


Would you like to keep the adaptor plate, or would you prefer to make your own? I am happy either way (genuinely no offence if you prefer to make your own) - I will have to make a new one whatever, for my Cabrio as this one rotates my Sierra reservoir over at an unacceptable angle.

I hope this little bit of good news has helped you feel a little better..........?

Thanks once again
Mike
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  #59  
Old 15th November 2011, 13:22
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Quote:
Originally Posted by MartinClan View Post
That's exactly how mine feels atm. Its like pressing on a brick wall....

So - it looks like I will be going that way. Just have to find someone with them is stock. I wonder who ACTUALLY makes them.....

Robin
Robin

May be a bulk purchase could be arranged to get a better deal - even from USA?

Mike
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  #60  
Old 15th November 2011, 13:30
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As long as you don't mind Mike, I'll keep this plate if it's no good to you.

I'm not sure if about the O ring - I just left the old one on that was on the metro servo - I'm not sure if it was sealing or not. I'll have a look in a mo.

As for group buys - if someone can find a place that does them, and won't bend us over a barrel for shipping, count me in. Of course we will get stung for import duty...

I have seen chrome ones on eBay. But they're around 90.
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