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#Post#: 53501--------------------------------------------------
Belt driven vacuum pump
DIR By: Rustbucket
Date: March 4, 2013, 5:17 pm
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I ve been told that a good mod for the series diesel owner with
servo assisted brakes is to ditch the inlet butterfly and vacuum
resovoir and bolt a belt driven vac pump from a peugeot diesel
to the timing cover and use a longer fan belt.
Has anyone on here done this ? is it easy to do and if so is it
worth doing?
Thanks in advance :)
#Post#: 53505--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: Albert Ross
Date: March 4, 2013, 5:35 pm
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Yes it can be done, but watch for direction of rotation as they
are mounted the back end of the camshaft on the XUD7/9 engines,
but on the front end of the XD2/3P units.
#Post#: 53726--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: romanyrose
Date: March 6, 2013, 5:08 pm
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G'day matey, as said above they work well and cost very little
and mine are driven off the double pulled water pump and crank
shaft with a adjustable roller tensioner in the middle and works
very well.
Catch you later. R-Rose.
#Post#: 53739--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: Arjan
Date: March 7, 2013, 3:48 am
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Yes, works well.
Most Jap. altenators have a vacuum pump on the back..
#Post#: 53745--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: s.o.t.d.
Date: March 7, 2013, 5:09 am
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Early 110's had the same set-up. Land-Rover engined black cabs
were the same.
#Post#: 53758--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: Rustbucket
Date: March 7, 2013, 8:16 am
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Thanks chaps, I think a trip to the scrapper is in order to see
what i can find. I like the alternator idea, i know that these
require an oil feed, where would be best to take a feed from ?
#Post#: 53772--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: GlenAnderson
Date: March 7, 2013, 12:03 pm
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Not all need an oil feed. The Pierburg ones fitted to Sherpa
vans and some Peugeots are self-contained. The Land-Rover ones
on early "Vehicle of inferior length" and 110s need an oil feed
though, as do Transit alternators.
Oh, and rather than use a longer belt and risk slippage, it's
better to use a double pulley somewhere along the line and a
second belt. Ideally you'd use double crank and waterpump
pulleys, and mount the vac pump on the other side of the engine
to the alternator, that way if either belt breaks you can still
limp home.
#Post#: 53805--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: divie
Date: March 7, 2013, 2:47 pm
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I suggest you do not faff about with a belt driven vacuum pump.
Instead get hold of an electric vacuum pump (Hella U28) Mine is
branded as a Volvo part. Around about 2 hours to fit and £70 to
£80 Remove the butterfly and blank off the spindle hole with a
bit of M6 threaded rod and rubber and steel washers. The pump is
wired through a relay and operated from the brake light switch.
With ignition on you get servo brakes without engine running
useful if you stall on an off road hill or are being towed. Look
on Fleabay for vacuum pump I bought mine from a Dutch supplier
Hella uk do not stock them. Dutch supplier gives wiring diagram
as well. Had mine on over a year now and really good less smoke
is a bonus. Only downside is you can hear it work when holding
on the footbrake.
#Post#: 53842--------------------------------------------------
Re: Belt driven vacuum pump
DIR By: s.o.t.d.
Date: March 7, 2013, 5:44 pm
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--- Quote from: divie link ---
>
> I suggest you do not faff about with a belt driven vacuum
pump. Instead get hold of an electric vacuum pump (Hella U28)
Mine is branded as a Volvo part. Around about 2 hours to fit and
£70 to £80 Remove the butterfly and blank off the spindle hole
with a bit of M6 threaded rod and rubber and steel washers. The
pump is wired through a relay and operated from the brake light
switch. With ignition on you get servo brakes without engine
running useful if you stall on an off road hill or are being
towed. Look on Fleabay for vacuum pump I bought mine from a
Dutch supplier Hella uk do not stock them. Dutch supplier gives
wiring diagram as well. Had mine on over a year now and really
good less smoke is a bonus. Only downside is you can hear it
work when holding on the footbrake.
>
--- End Quote ---
Thanks for the info, I'd been toying with the idea of fitting
one of these, so that I could fit a normal alternator and do
away with the vac. pump on the back of mine.
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