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10-05-09, 06:05 PM
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#1 (permalink)
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250+ Club
Join Date: Jan 2008
Location: Maine
Posts: 845
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3B High Altitude Compensator
I'm looking for the HAC for an inline 3B injector pump.
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1982 RHD BJ42 3B turbo, 1980 HJ45 Troopy, 1982 HJ47 Troopy
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10-05-09, 08:45 PM
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#2 (permalink)
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Site Addict
Join Date: Jan 2007
Location: Lumberton, NC
Posts: 1,829
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Rufus
what is this thing your looking for? optional equipment?
R
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06/1983 RHD Turboed BJ42 LX, Triple wipers, P/S, A/C, 5 spd H55F, ARB Lockers, factory 6 seater!
CDN M101 Military camping trailer w/ RTT
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10-05-09, 09:33 PM
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#3 (permalink)
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250+ Club
Join Date: Jan 2008
Location: Maine
Posts: 845
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I don't think it was optional. I think it's a country-specific item. I believe that it was standard on Canadian spec 3B engines but not available in most of the rest of the world.
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1982 RHD BJ42 3B turbo, 1980 HJ45 Troopy, 1982 HJ47 Troopy
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10-13-09, 11:22 AM
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#4 (permalink)
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250+ Club
Join Date: Aug 2006
Location: Denver now but used to be Breckenridge, Colorado
Posts: 552
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If they are anything like the HACs from their gas motors, they are not really worth anything if you ever travel much above 4000 feet. If you read the (gas) specs, it is full open by around 3800 feet so anything greater and you are getting no adjustment...
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1981 JDM BJ44 RHD - Going under the knife soon!
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10-13-09, 07:19 PM
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#5 (permalink)
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Forum Regular
Join Date: Nov 2007
Location: Vancouver, BC
Posts: 175
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It didn't come standard on my CDN 84 BJ60 (it has a fixed cartridge), and I haven't seen any that had it, but I do have one from a spare B engine (same DHAC P/N as on B, 2B, 3B and some gassers). I opened it up to figure it out what exactly it did and it is an aneroid which expands as the ambient pressure drops, and extends the maximum fuel stop arm to reduce the max fuel availiable at altitude, therefore less black smoke. There is also a spring loaded damper to help reduce rapid resopnse and overfuelling smoke. There are two adjustments on it but nothing in the FM to say how to set it up, except that it needs to be done by a shop, on a test bench, to deliver so many cc's of fuel per thousand revs. So it reduces smoke by reducing fuel, and power.
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1984 BJ60 3B (daily driver for 24 years and still pulling strong after 400000k)
1972 Steyr Haflinger lwb (sold)
1974 Steyr Haflinger swb (sold too, sob....)
Dog is my Co-pilot.
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10-13-09, 09:12 PM
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#6 (permalink)
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Forum Lifer
Join Date: Jan 2003
Location: Cranbrook, B.C., Canada
Posts: 8,959
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Nope, not standard on Canadian 3B's. With a turbo it is not necessary anyways. I've run my truck at 13,650' with no issues, no clouds of black smoke, no excessive EGT's and no significant power loss but then I'm also turbo'd.
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'82 BJ60 H55 tranny, AXT turbo 3B diesel, high nickel alloy head, A/C, BDS lift, factory PTO, Aussie rear locker, OEM LSD front, 4:11's, 32's, PERFECT frame!
'76 FJ55, 3B turbo, alloy head, H41 tranny, 3 sp. transfer, 33's, A/C, PTO winch, long range tank!
'67 FJ45LV shop project c/w 3B turbo diesel transplant & H41 4 speed, 3 speed transfer, PTO!
www.wirrell.com
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10-15-09, 10:27 AM
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#7 (permalink)
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Forum Lifer
Join Date: Jan 2003
Location: Calgary AB
Posts: 2,764
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It varied by year and model. 40s and 42s had them... early 60s too, I think. They can be used as a bit of a boost compensator if you add a turbo and plumb the boost to them.
I'm a glass half full kind of guy and would argue that they allow more fuel at lower altitude.
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10-15-09, 04:29 PM
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#8 (permalink)
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Forum Lifer
Join Date: Jan 2003
Location: Cranbrook, B.C., Canada
Posts: 8,959
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It must be the real early '60's 'cause mine is an '82.
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'82 BJ60 H55 tranny, AXT turbo 3B diesel, high nickel alloy head, A/C, BDS lift, factory PTO, Aussie rear locker, OEM LSD front, 4:11's, 32's, PERFECT frame!
'76 FJ55, 3B turbo, alloy head, H41 tranny, 3 sp. transfer, 33's, A/C, PTO winch, long range tank!
'67 FJ45LV shop project c/w 3B turbo diesel transplant & H41 4 speed, 3 speed transfer, PTO!
www.wirrell.com
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10-21-09, 12:12 PM
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#9 (permalink)
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Forum Regular
Join Date: May 2009
Location: Camp Verde, AZ and Parks, AZ
Posts: 11
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So if you have one from a spare 3B ... is it for sale? I am interested. Thanks, Eric
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RufusTheDufus
