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#1
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injection pump calibration
is the injection pump calibtates for a specific car? or is it just calibrated for it's own need?
Basically what I'm asking is...can I remove an IP from a good running engine and install it on another engine without recalibrating the pump? Both are 617 turbos. I have a running parts car and was curious about this. If say I wanted to trouble shoot a problem by swapping parts, can I just swap IPs and see what happens?
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1987 300TDT 1981 VW MKI Caddy 1.6 diesel, waiting on engine swap 1983 D-50 Power Ram 4x4 "Mitsubishi" 2.3 turbo diesel assorted gas powered crap and motorcycles RIP: 1984 300TDT, 1982 300TDT, 1984 190D 2.2, 1992 300D 2.5, 1987 300TDT, 1982 Maxima LD28, 1983 Maxima LD28, Isuzu C223 P'ups X3, 1983 Holiday Rambler 6.2 Banks turbo diesel, 1984 Winnebago LeSharo 2.1 TD, 1985 Allegro 6.5 |
#2
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I'll bite
I think the consensus is, in short- Yes.
In long, you need to verify a few things: -Timing chain, acceptable "stretch" (there should be few pags in the manual on how to check timing chain stretch - IP start of delivery- this is the only "timing" you can do to an OM617 pump. Make sure this is good before starting the car. Other than that, the thing should run fine. I assume that you are *sure* your current IP is not working properly. -John
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2009 Kia Sedona 2009 Honda Odyssey EX-L 12006 Jetta Pumpe Duse (insert Mercedes here) Husband, Father, sometimes friend =) |
#3
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So the calibation should be already set, essentially for the life of the IP.
The "start of fuel delivery" timing would have to be set for each individual engine the IP is bolted to. Sounds like a go then. But I'm just asking out of curiosity now, the future might be anything. As far as the timing chain stretch...I assume the IP would need to be re-timed every few years over the life of the engine.
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1987 300TDT 1981 VW MKI Caddy 1.6 diesel, waiting on engine swap 1983 D-50 Power Ram 4x4 "Mitsubishi" 2.3 turbo diesel assorted gas powered crap and motorcycles RIP: 1984 300TDT, 1982 300TDT, 1984 190D 2.2, 1992 300D 2.5, 1987 300TDT, 1982 Maxima LD28, 1983 Maxima LD28, Isuzu C223 P'ups X3, 1983 Holiday Rambler 6.2 Banks turbo diesel, 1984 Winnebago LeSharo 2.1 TD, 1985 Allegro 6.5 |
#4
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Not sure.
From what I've gotten out of my reading here...
As the timing chain "stretches" (it doesnt really stretch, but the term is close and now very colloquial) it will affect IP timing...but not enough to cause concern- IE- if you just replace the timing chain when it needs it (5 degrees of stretch ? not sure...), then the IP timing will always be "close enough". A few guys here have experimented with advanceing the IP timing or otherwise playing with it (something about a shim or key), you'll have to do a search on that and from what I remember, its something you dont approach unless you REALLY have nothing better to fix (car runs fine, starts instantly at 10F, valves, prechambers clean, Injectors balanced, start of delivery OK....) and even then is kinda risky. I could be wrong though. -John
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2009 Kia Sedona 2009 Honda Odyssey EX-L 12006 Jetta Pumpe Duse (insert Mercedes here) Husband, Father, sometimes friend =) |
#5
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Good question...
Quote:
Each injection pump is calibrated on a test stand, and then delivered to the factory for installation on the engine. I hope this answers your question.
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ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
#6
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If I had a IP to swap I would take it to a IP service shop to have them check it out. It is rare for an inline pump to have major issues, they seem to be very durable but while it is out is the time to have it checked. The shop will also be able to tell you if it is calibrated correctly for your application. The short answer is bolt it in, set the timing and you are good to go. RT
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When all else fails, vote from the rooftops! 84' Mercedes Benz 300D Anthracite/black, 171K 03' Volkswagen Jetta TDI blue/black, 93K 93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K |
#7
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It would be a good idea to get the "new" IP serviced (resealed and recalibrated) before installing it. A IP that has been removed and drained of fuel is alot more likely to leak. Also you won't have to R/R it again if there is a leak/calibration fault.
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Alex. MB Tech Sydney, Australia Volvo 122S W201 190D 2.5 manual W202 C240 W203 C32 |
#8
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if anyone is looking for a good shop to do ip and injector nozzle work, give the Clark-son Co. a call. They are located in New Haven, CT on 354 Davenport ave. They specialize in bosch diesel injection. I recently had an injector nozzle rebuilt there.
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2002 G500 74K 1998 E300 200K and rising 1995 S600 73k "Some people spend an entire lifetime wondering if they've made a difference. The Marines don't have that problem."-Ronald Reagan "Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity."-General George S. Patton |
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