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When the fuel pump is set properly there should be little to no smoke even when stomped on. The speeds seem to be only about 5 MPH slow across the board. Climbing hills in 5th gear even slight ones tend to drag the truck down (remember only about 130 HP). Since you have already changed the...

The Vent is bolted between the valve covers and the rubber tube runs down to the front axle on the left side of the engine as viewed from the front. V/r Russ

Check your crankcase vent and breather tube are not clogged. V/r Russ

It may be your gage. Mine reads about 25 degrees low when checked against an IR temp gun. Russ

I just did mine due to fuel dilution. I removed the T from the fuel return and used a 90 elbow vice plugging. On my FDC I removed it from the pump and turned stop plate adjusting screw in .100" to reduce fuel delivery (using two 1/2" wrenches, one may need grinding to fit, loosen locknut and...

This looks like wet stacking (unburnt fuel and carbon), which normally happens from running at no load for extended periods of time. I had this problem but to a lesser extent when flushing my radiator, 30 minutes of hard running cleared it right up. I would pull the discharge piping from the...

Your picture is of the oil pressure regulator. The unit consists of actually two regulators, engine oil and piston cooling. You are correct the oil pressure sending unit is on the passenger side rear of block (single wire as previously stated). You may be able to correct the haywire behavior by...

Agree, marker lights are off with head lights on. Green light should blink when signaling. /r/ Russ

Check the return spring has not been removed. The fuel control lever must be held to the idle position or it will go to wide open throttle. See lower spring in attached photo. V/r Russ

You can use the following fomula with the adaptor. C=D(A/(A+b)) WHERE: A=LENGTH OF TORQUE WRENCH B=LENGTH OF ADAPTOR C=TORQUE SETTING D=REQUIRED TORQUE AT BOLT Or just use the torque wrench at 90 degrees from the adaptor so that the length has no effect on torque. Russ

Check your crankcase vent and make sure it is not plugged. High crankcase pressure will cause the seal to leak.

Try this link for Ringelmann smoke chart. http://www.cdc.gov/niosh/mining/pubs/pdfs/ic8333.pdf Russ

The problem I see with pressurizing the tank is that if you're drawing air through bad fuel lines, you will now be pushing fuel out of these same lines.

The sending unit has to be grounded. check the threads are not sealed with teflon tape interfering with the ground. You may also want to make sure the engine is properly grounded (Driver side of engine rear inspection cover bolt to firewall). Russ

Side of fuel injection pump has Warning label stating " IMPORTANT MAX TORQUE TUBING NUTS 25 LB. FT." This is probably because the hydraulic head is notorious for cracking between the delivery valve screw and No. 3 cylinder port. As far as the HP line to the nozzle I could not find any...

Medlog, Looking for any history on the following: M35A2 AM GENERAL NSN: 2320-077-1616 ID NO.: NK00NB-72 0525-25503 CONTRACT: DAAE06-70-C-0001 Thanks for any info in advance. V/r Russ

Hope this helps. Russ

As far as the blowby, the engine would emit light smoke from the crankcase breather tube, when I put my hand over the tube it was really trying to push it off. I didn't need a manometer to tell. it would probably have blown the water right out of a U tube. I could never find what crankcase...

I am getting a power pack from White Owl @ $220. While going through the engine I also found all sleeves cracked from the flange running down @ $95 per. I am currently tring to get 5 ring sets NSN 2815-01-454-6145 which are for the 3 ring piston which is apparently uncommon. If I have to go...

FYI, recently got a M35A2 that was experiencing blowby with just over 1000 hrs on the engine. I found that No. 1 cylinder sleeve was scored along the front of the engine along the axis of the piston pin. After disassembly I found a bright mark on outside of sleeve and a raised dimple in the...