Farrell Diesel Service

Farrell Diesel Service We specialize in tuning, repairing, and building stock to completely custom fuel injection systems for high performance diesel engines.
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Today we're dialing in a 13mm pump built by a competitor - they used great parts but missed the mark in the pump setup a...
09/16/2026

Today we're dialing in a 13mm pump built by a competitor - they used great parts but missed the mark in the pump setup and calibration which allows us to knock the injection duration from 43* to 34* at 850cc and from 71* to 39* at 1000cc (without changing any expensive components). If you are looking for more power or just an honest opinion on your current pump build we're happy to help!

Tech tip of the day: if you suddenly have a leak around the dv holder or barrel and the dv holder is loose, DO NOT TIGHT...
08/11/2026

Tech tip of the day: if you suddenly have a leak around the dv holder or barrel and the dv holder is loose, DO NOT TIGHTEN THE DV HOLDER. You likely have a broken barrel and by tightening it you cause interference and usually tear up a pump cam and tappet in addition to the broken barrel.

07/08/2026

Busy day for the test stand! New genuine Bosch VE pumps getting some modified fuel pins, governor springs, and turned up to 240cc

We hope you all enjoy the 250th birthday of our great country tomorrow (and end the day with all of your digits)! We'll ...
07/04/2026

We hope you all enjoy the 250th birthday of our great country tomorrow (and end the day with all of your digits)! We'll be enjoying time at a truck show with this crusty old k dub

For those of you who ask what accessories to remove and what to leave on when sending a pump in, here's exactly what we ...
05/29/2026

For those of you who ask what accessories to remove and what to leave on when sending a pump in, here's exactly what we need on them.

04/22/2026

Just a few pumps in the build process, these dinosaurs will never die!

03/02/2026

Getting a rowdy 4bt 13mm pump ready to ship to Texas today. Idle like a stock pump and fuel like a monster is our goal!

Pay Amazon prices, get Amazon quality. When your $20 Chinese governor springs won't fuel or idle correctly, relocate the...
02/20/2026

Pay Amazon prices, get Amazon quality. When your $20 Chinese governor springs won't fuel or idle correctly, relocate them to the scrap bucket and buy a quality set from us! Our 4k kits are $100 plus shipping and 5k kits are $150 plus shipping. All our springs and seats are USA made and we stand behind them!

Another day, another ve with broken rotor springs. We'll have this little guy back up and running quickly! Lead times ar...
02/02/2026

Another day, another ve with broken rotor springs. We'll have this little guy back up and running quickly! Lead times are running about a week right now for those wanting to send in pumps

Before and after the remanufacture process on rear governor covers, we're well stocked to get your pump rebuilt and back...
01/07/2026

Before and after the remanufacture process on rear governor covers, we're well stocked to get your pump rebuilt and back up to new standards. We're always striving for higher quality and shorter turn around times, hit us up as we're currently running about a week from receiving your pump to shipping it back your way!

Address

4480 Lowman Road
Smithville, MO
64089

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+18162050757

Website

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