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Author: Subject: Compact servo? any bright ideas?
cliftyhanger

posted on 26/4/16 at 08:09 AM Reply With Quote
Compact servo? any bright ideas?

My dear old Triumph toledo really needs a servo. (it was factory supplied with drums, sometime upgraded to tiny dolomite discs but no servo, the dolomites all had them)
I have some choice, a 40 year old servo for £50 and another £100 for a resleeved brake master cylinder.
Or plan B, find a reasonably compact servo, which will have dual circuit master (mine is single circuit, but that is an easy swap.)

So far I have looked at my daughters pug 107 that has a 280mm diameter servo, and has about correct bore at 20mm or so.
But are there any out there a bit smaller as space is tight.

Ebay pics are not that helpful, and I can't find a listing with physical sizes....

TIA
Clive

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loggyboy

posted on 26/4/16 at 08:52 AM Reply With Quote
Does it need one? It cant be that heavy? Just upgrade to a decent M/C?





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nick205

posted on 26/4/16 at 09:09 AM Reply With Quote
I see what you're trying to achieve here, but would echo Loggy's question about just changing the M/C and seeing if that solves it - easier and quicker to do. Another option might be a Pug 205 servo, one off a 205 GTI may fit and be relatively inexpensive.






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mark chandler

posted on 26/4/16 at 09:17 AM Reply With Quote
You could get remote servo's once upon a time, fitted to p6 rovers etc which you can tuck away anywhere as fluid in, fluid out no push rods.
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Brian R

posted on 26/4/16 at 09:18 AM Reply With Quote
What about the remote type?

NEW LOCKHEED TYPE REMOTE BRAKE SERVO MGB 1.65 ***

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mark chandler

posted on 26/4/16 at 09:21 AM Reply With Quote
eBay Item
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Dick Axtell

posted on 26/4/16 at 09:37 AM Reply With Quote
quote:
Originally posted by cliftyhanger
So far I have looked at my daughters pug 107 that has a 280mm diameter servo, and has about correct bore at 20mm or so.
But are there any out there a bit smaller as space is tight. TIA Clive

Gotta Sierra 8" servo+mcyl - unused. Would this be too large for space on your Toledo?





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britishtrident

posted on 26/4/16 at 09:38 AM Reply With Quote
Lockheed remote servos are very reliable much more so than the Girling type.





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big-vee-twin

posted on 26/4/16 at 10:46 AM Reply With Quote
There's this link but not so cheap.

Maybe not its quite long!

[Edited on 26/4/16 by big-vee-twin]





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Sam_68

posted on 26/4/16 at 01:08 PM Reply With Quote
quote:
Originally posted by britishtrident
Lockheed remote servos are very reliable much more so than the Girling type.


Absolutely NOT my experience!

They're a standard solution on Lotus Elans, due to the unavailability of the original Girling remote servos, but they have a dreadful and well-known reputation for locking on. A sharp kick down on the brake pedal sometimes frees them, but then again sometimes it doesn't. They're sensitive to the angle they're mounted at, which sometimes cures the problem, but then again sometimes it doesn't.

It can be 'interesting' when your servo decides that you're going to do an involuntary emergency stop whilst on a fast dual carriageway. Ask me how I know...

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cliftyhanger

posted on 26/4/16 at 01:41 PM Reply With Quote
Yes, it does need one. I have already fitted a smaller 0.625 bore MC, and that helped, but nowhere near enough. The brakes are tiny (smaller than spitfire discs, same calipers!) and these brakes were used on all models from 1300 up to the 127bhp sprint, though that got a bigger servo and better pad material.
The car currently has a TR7 engine and is no slouch for a 44 year old banger!
Having driven servo'd cars they feel much better.
Thought about remote servo, but if I can get a good used servo cw master for not a lot....and the repro servos? I have no idea at all on quality. Pug 107 may just squeeze in, need to measure again carefully.

As to the sierra servo, is 8" the actual outside diameter? I will pm....

Cheers all

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Shooter63

posted on 26/4/16 at 03:29 PM Reply With Quote
The proper Mini Cooper s had a small remote servo which is still available as a pattern part, although not very cheap, if you surf the mini forums, nos come up every now and again.

Shooter

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sprintB+

posted on 26/4/16 at 04:30 PM Reply With Quote
my Dutton runs a remote Hillman Imp one, actually its a Sunbeam Stilletto one, Its in the boot, worse part is keeping a good vacuum. Solved with an aeroquip hose.
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gremlin1234

posted on 26/4/16 at 06:21 PM Reply With Quote
I am sure I have seen a servo conversion just on the front brakes. (cant remember if it was spitfire or gt6) so twin master cylinder, with single remote servo for the front brakes.
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rusty nuts

posted on 26/4/16 at 06:53 PM Reply With Quote
Might be worth checking out the servo on some of the smaller Japanese cars like the Micra?
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Sam_68

posted on 26/4/16 at 08:05 PM Reply With Quote
quote:
Originally posted by sprintB+
my Dutton runs a remote Hillman Imp one, actually its a Sunbeam Stilletto one, Its in the boot, worse part is keeping a good vacuum. Solved with an aeroquip hose.


The Imp servo is a Girling remote - same as the Elan - so not available new these days, and second-hand ones are getting questionable in terms of serviceability.

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