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Old 07-03-2014, 04:11 PM   #1
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Fuel Injectors: Buy new or rebuild ??

I have twin Lehman 7.8 LT. 474 CID Ford block Lehmans. What is your opinion as to take mine out with 1800 hours on them to be rebuilt or just buy new and install. It appears the cost could be very close.
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Old 07-03-2014, 04:20 PM   #2
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Are you having problems with them? Can you have them tested and only rebuild or replace any defective ones?
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Old 07-03-2014, 05:21 PM   #3
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Take them to a tractor store and have them tested, then rebuild the ones that are not to specs. There is only a spring and a precise hole.

Or buy 6, replace one engine and send the old ones out to be rebuilt, then put the rebuilt in your second engine and have the old ones rebuilt, or sell them.

If the engines are hard to start, run rough or smoke more than a Lehman usually does, go for it.

You should adjust the valves now too.
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Old 07-03-2014, 05:39 PM   #4
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If the price is truly close, by new.
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Old 07-03-2014, 05:44 PM   #5
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Quote:
Originally Posted by Ron T View Post
I have twin Lehman 7.8 LT. 474 CID Ford block Lehmans. What is your opinion as to take mine out with 1800 hours on them to be rebuilt or just buy new and install. It appears the cost could be very close.
Kitting (rebuilding) is usually half the price of new. Shop around a bit if the shop wants a new price for a rebuild. Unless you are having some issues, smoking, a miss in the engine, you don't generally have injectors rebuilt/replaced as a routine maintenance item.
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Old 07-04-2014, 10:28 AM   #6
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Thanks for your input. I will pull 6 and have them rebuilt then do the other 6 and do valves while out. Valves are done cold. The coat does very a lot.
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Old 07-04-2014, 01:05 PM   #7
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Look for any diesel injection pump shop for quotes.
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Old 07-04-2014, 03:33 PM   #8
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I'm still not clear why they need to be rebuilt/replaced. 1800 hrs? No symptoms of any problems? Save your money.
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Old 07-12-2014, 07:05 PM   #9
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Bob smith at American Diesel will send you a set of rebuilt ones. You change them out and send him back the old ones. Works pretty good.
Jeff
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