As you may visualize, seeking to source most of these elements individually could choose some time, that makes the all-inclusive kit offered by Scheid all the more interesting.
Just as an engine might have its cylinders bored to include displacement, the P7100 is often bored to just accept greater plungers and barrels — Which’s just what comes about in the extreme segment on the diesel aftermarket.
We’ll note the OEM equipment housing gasket supplied from the kit was also modified to fit beautifully.
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After the injection pump gear was out, the VP44 was removed from the equipment housing. Truth be told, this was the truck’s unique 213,000-mile injection pump. Its 1 saving grace came in the form of being fed ample gas provide (courtesy of the AirDog lift pump) for many of its lifetime.
Probably the most pressing general performance hinderances While using the VP44 pertain to lower gas quantity and a lack of obtainable higher-rpm fueling. For sure, will increase in horsepower might be produced, but it’s nowhere near the level of likely that exists While using the P-pump. Through the manufacturing facility, the VP44 can only gas to three,200 rpm and many aftermarket tuners—Despite the fact that they enhance horsepower—don’t supply for fueling further than three,200 rpm.
As mentioned, a twelve-valve equipment housing must be bolted to the 24-valve Cummins’ block in order to furnish the P7100, however , you’ll also want the right pump travel equipment, the right throttle linkage, a cam sensor adapter, P-pump assistance bracket, P-pump oil feed line and a whole host of other miscellaneous components.
Utilizing a gasket scraper, followed with a grinder Outfitted using a Scotch-Brite pad, Bosie taken out all leftover material from the initial equipment housing gasket.
Just after carefully finagling the factory cam again into place, the crank-to-cam timing marks were being lined up correctly along with the cam gear bolts were being torqued to eighteen ft-lb. Although the cam was wiped clean ahead of becoming reinstalled, no assembly lubricant was utilized.
Anytime you’re retaining the identical cam and lifters, it’s very best not to disturb their marriage. Furthermore, foregoing using any assembly lube causes it to be simpler to run the valves later on
When not a “totally free” PPUMP mod, this a single will only set you back again $10 to $15. It’s important to Notice that the best way to install the Mack rack plug is Together with the pump from the engine.
Over a linked valve train Notice — and because P-pumps almost always boost both the amount of boost and rpm an engine sees — Furthermore, it pays to set up stiffer valve springs (If your operator hasn’t now accomplished so) for the duration of a P-pump swap. Hamilton Cams is a superb source for camshafts, more robust force tubes and upgraded valve springs to the 5.9L (and six.7L) Cummins mills.
Soon after 1 examination in shape, the return line around the P7100 was tweaked to very clear the consumption runner on The pinnacle and then the pump was put in during the equipment housing. The pump mounts to your equipment housing through 4 bolts, and gets bolstered as a result of a heavy-duty help bracket equipped in Scheid’s conversion package.
Nonetheless, the 24-valve Cummins is notorious for its not enough substantial-horsepower capability and also the dependability of its injection pump—the Bosch VP44 remaining at the middle of both equally of Those people complications. The last word deal with for a lifeless VP44 or simply a craving for serious horsepower has constantly been to turn towards the proven P7100 (i.e. P-pump) that came normal on the twelve-valve 5.