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Jul 23, 2011 19:15:25 GMT
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something i've been planing to do for ages. and i'm pretty sure there's plenty of other people thinking,doing or done something similar. but what things do i need to know? are petrol fuel lines ok to run diesel? need to use a sucker to run the servo, but a diesel alternator will have one so should just be able to plug that in? wiring up the rev counter will poss be a problem. may need to change the final drive ratio to account for a lower reving diesel engine. any info and other tips appreicated.  |
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Isn't the easiest way to just get a diesel vehicle of the right quality and stip it for the parts you need?
Diesel will flow fine through petrol pipes in terms of the chemical aspect but the delivery pipes can restrict power if they are too small for the engine they are feeding. Diesel engines use less fuel though. So probably going to be fine.
If you use the transplant method then you won't need to worry about the alternator as the donor engine will come with one.
Rev counters normally work off a pulse. The donor engine will be broadcasting a pulse from somewhere to drive the rev counter in the donor vehicle. Probably the ECU as well.
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Last Edit: Jul 24, 2011 8:21:20 GMT by ejenner
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rodney
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https://www.facebook.com/RD-vehicle-transport-and-recovery-services-525622614268010/
Posts: 1,677
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as above , you want a donor car or a complete engine with all its bits dependong on what diesel engine you use and what car its going in etc , ive done a few di engine swaps over the years now and as long as it mounts up to the box etc then your away,.
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facebook: rodney dean / rd transport  |
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bortaf
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Posts: 4,549
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Jul 24, 2011 11:28:35 GMT
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something i've been planing to do for ages. and i'm pretty sure there's plenty of other people thinking,doing or done something similar. but what things do I need to know? are petrol fuel lines ok to run diesel? need to use a sucker to run the servo, but a diesel alternator will have one so should just be able to plug that in? wiring up the rev counter will poss be a problem. may need to change the final drive ratio to account for a lower reving diesel engine. any info and other tips appreicated. yep diesel will run fine in petrol pipes not all vacum pumps run off the alt but every diesel engine will have one somewhere You need a diesel specific rev counter or some electrickery to convert a petrol one to run off the alt on the diesel Higher diff ratio certainly helps but TBH it all depends on what you use it for, when I converted my P100 to diesel the petrol diff ratio was fine as I never use it on motorways but 60 is comfortable cruising 70 is ok but you know it's nearing it limit and 80 is just painfull on the ears  One warning, as with EFi you need a swirl pot, it wont stall the engine straight away as the air enters the fuel pickup like an EFi but it will stall when the air reraches the injectors, same result just a delay, this does depend on the tank design but on mine I got pee'd off with it stalling 100 yards after every dam roundabout if I had less than £30 in the tank and finaly relented and fitted a propper diesel tank. Using a doner is the easyest way TBH also worth noting most diesels use heavyer/thicker flywheels so may not be compatable with a petrol box. |
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Last Edit: Jul 24, 2011 11:31:30 GMT by bortaf
R.I.P photobucket
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Annoyingly, the Citroen XM doesn't.. as I found out. It uses its hydraulic system to help with power assist for brakes. I just removed the servo  |
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You're like a crazy backyard genius! |
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bortaf
Posted a lot
Posts: 4,549
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Jul 25, 2011 17:18:43 GMT
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Annoyingly, the Citroen XM doesn't.. as I found out. It uses its hydraulic system to help with power assist for brakes. I just removed the servo personly i would have just fitted a vac pump from another engine, on the LDV XUD they are sealed so no oil feed needed, 2 bolts and a longer belt, probably take less time than removing the servo |
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R.I.P photobucket
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Jul 26, 2011 11:02:49 GMT
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sounds like it's similar to the pug 205 remote vac pump - something I plan on using for the next rebuild. The remote servo however, was half filled with brake fluid anyway, so needed new seals. Replacing it with 2 foot of pipe, was far quicker and easier |
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You're like a crazy backyard genius!
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