The Impco Model J Regulator is a fantastic product, but like all machine parts, get worn out and need care. This blog page is dedicated to repairing and/or replacing your regulator. Impco is a manufacturer of fuel system components that has been around since 1958. Impco works with fuel system components for alternative fuels like LPG/propane gas that allow for a cleaner environment. You can find Impco parts in a variety of different forklift brands such as Hyster, Nissan, Toyota, Yale and many others. Intella carries the most popular pressure regulator, the Impco Model J, along with a few other models, accessories and kits.
How to Repair and Rebuild Your Impco Model J Regulator:
So your regulator is on it’s way to the forklift graveyard? Have no fear. Here at Intella we have a couple different models so you can find the perfect replacement to get your forklift running smooth again.
Classic model: Impco Model J Regulator
The Impco Model J regulator/vaporizer delivers reliable performance and pressure output consistency. It’s reliability, especially with questionable fuel quality, has made it an industry standard for many years. Two vapor outlet pressures are available. The standard Impco Model JB (this version, meaning blue spring) provides -1.5″wc (0.37 kPa). The optional JO (J-orange) provides 0.5″ wc (0.12 wPa). The port size and mounting pad locations are identical to the Impco Cobra regulator and include a primary pressure test port and “left” or “right” fuel outlets.
Base model: Generic Model JB Regulator
The generic model JB regulator and the Impco Model J are similar in build, although a noticeable difference would be the primer button found on the generic model JB. Impco no longer manufactures Model J’s with a primer button but the generic model JB does have one. The primer button can allow for a shot of propane into the engine for starting purposes. The “B” stands for blue spring. This is by far the most common model J regulator. The blue spring offers negative 0.37 kPa (1.5 inches w.c.). The Impco Model JB diaphragm is made of hydrin and is suitable for most applications.
Don’t think you need a brand new regulator? Save some money and pick up a rebuild kit. You can repair and rebuild Model J Regulators using kits made of hydrin or silicone. You can rebuild a Model J regulator as many times as you can get your paws on a rebuild kit. Oh and you’re in luck because here at Intella, we regularly stock a few different kits.
What’s the difference between hydrin and silicone you ask?
Well to start off, silicone performs better in colder climates than hydrin. This is due to the fact that the silicone diaphragm stays noticeably more flexible in colder weather. The physical makeup of silicone is actually lighter than hydrin too, making a little bit more responsive. Lastly and very advantageous, is that silicone has a better resistance to being damaged from fuel.
Classic Kit: Impco Model J Repair Kit
Most common Impco regulator repair kit, mostly used on forklift propane fuel systems. Repair kit for the popular Model J forklift LPG regulator. Includes hydrin diaphragm, secondary seats, gaskets and primary diaphragm. Exactly what you need to rebuild an Impco Model J regulator.
If you need parts, Intella can help. We have thousands of parts available at great prices and would be happy to help you find what you’re looking for. Click here for more information! Also you can check out Intella’s YouTube channel for how-to videos and product demos.
Post by Intella Liftparts
Master Parts Catalog
The IMPCO Master Catalog lists saleable parts for small engine, material handling, some automotive and large engine applications sold under the brand names IMPCO, Beam, Garretson.
Click here to download the entire Master Parts Catalog in high resolution, or select the specific catalog section below:
Carburetors & MixersMixers and combination Mixers and Throttle Bodies (Carburetors) from IMPCO model 55 to 600 for natural gas and LPG.
Fuel MeteringVenturis, Load Blocks, Power Adjustment, Spud Tubes, Power Valves, Vacuum Switches, Electronic Control Units and other components.
RegulatorsAir and coolant heated Regulators (Converters) designed to regulate natural gas and LPG fuel delivery pressures.
Fuel Shut Off/LockoffsElectronically controlled solenoid Fuel Shut Off Valves.
AdaptersAir Horn, Mixer and Throttle Body Adapters allow components of different sizes to mount together and to a variety of intake manifolds.
Fuel Injectors, Misc. Components and AccessoriesFuel Injectors and related components, Regulator, Levers, Brackets, and Filters
Spectrum Series II
Spectrum Series III
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