6bt cummins conversion
- deedy
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Thanks
Chris
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- Outback Jack
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A lot of cars have this fitted as standard now.
Here is a new kit
ELECTRIC POWER STEERING KIT
A quick look on ebay you will find used ones for around 200 odd dollars that come off MR2`s.
Not sure how they would go on OKA with brakes using same pump.
Here is a write up off a MR2 one getting fittied to a car.
Power Steering conversion
The other use for these pumps maybe for hydrualic winches etc etc.
Downside is they can draw a lot of current.
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- dandjcr
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I think I'd rather stick with the mechanical pump although a large pressure reservoir would be a useful addition so the brakes/steering continue to work for a while after the engine stops.
Are there such things? Answer yes, Hydraulic Accumulators . Has anyone looked into these for Oka applications?
David and Janet Ribbans - Oka 148
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- dandjcr
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deedy wrote: What flow rate and pressure is needed to replace the vickes hydrolic pump? Chris
Chris, I think the pump is a Vickers Eaton V10 model . You might find some useful data here and here .
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- PeteFox
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For an LT
the hydraulic pump is a Vickers V10-IS4-S12-C20
The Oka specs are:
100 psi min at 750 r/min
1500 psi max at 2400 r/min
Nominal Flow 13.5 litres/min at 2400 r/min
I presume this is engine RPM. You may have to consider the actual RPM of the hyd pump on a Perkins and compare this to the compressor RPM on the Cummins in sizing the replacement pump.
Paul Nott has done this conversion, he should be able to put you on the right track.
The fluid is fed to the Hydroboost which has a small accumulator for the brakes which then feeds to the steering box.
According to the manual you should have two brake applications form the accumulator when it is fully charged with the engine stopped.
Pete Fox OKA266 MultiCab
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- dandjcr
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Presumably it's part of the master cylinder? (I don't have a manual for that section).
Robin told me once I should have a couple of boosted pumps of the brakes available after the engine stops but I don't.
What could be wrong?
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- Outback Jack
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- PeteFox
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You definitely have a hydroboost. The accumulator is a non serviceable nitrogen filled cylinder on the side of master cylinder. Presume you're out of nitrogen, me too.
Pete Fox OKA266 MultiCab
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- deedy
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Thanks
Chris
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- Outback Jack
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Not sure but Allan at OKA may have them as well. He would be the first place I would start.
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- Joseph Baz
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Cheers,Joe
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- dandjcr
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deedy wrote: Thanks Peter. I also assume that it is right hand or clockwise rotation. If it was a a slightly bigger pump would this cause problems?
Thanks
Chris
Deedy, the current hydraulic pump is quite a tight fit under the injector pump so a larger one would be difficult to fit.
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- Peter and Sandra OKA 374
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OKA 374 LT Van, converted to camper/motorhome,
400ah Lithiums, 1100w solar, diesel cooking heating and HWS,
Cummins 6BT, Allison 6 speed auto, Nissan transfer.
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- dandjcr
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PeteFox wrote: Dave
You definitely have a hydroboost. The accumulator is a non serviceable nitrogen filled cylinder on the side of master cylinder. Presume you're out of nitrogen, me too.
Thanks Pete, that would explain it. And there's no recharge valve?
Sounds like a larger external accumulator would be the better way to go, a similar principle to the one on my domestic water system pressure pump.
David and Janet Ribbans - Oka 148
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- Peter and Sandra OKA 374
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OKA 374 LT Van, converted to camper/motorhome,
400ah Lithiums, 1100w solar, diesel cooking heating and HWS,
Cummins 6BT, Allison 6 speed auto, Nissan transfer.
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- Outback Jack
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- Joseph Baz
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Cheers,Joe
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- Outback Jack
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Peter and Sandra James OKA 374 wrote: They are about $us400 new on ebay, cost about $40 to post over
Peter are you talking about the Hydro booster?? If so do you have any links?
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- PeteFox
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there are dozens of them here but it looks like there are a few different versions made for different vehicles and orientations
Pete Fox OKA266 MultiCab
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- Peter and Sandra OKA 374
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- Posts: 1321
OKA 374 LT Van, converted to camper/motorhome,
400ah Lithiums, 1100w solar, diesel cooking heating and HWS,
Cummins 6BT, Allison 6 speed auto, Nissan transfer.
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