Recent content by mattd

Started 3.7L build. Mounted the block on the stand, measured all the bearing clearances with bore gauge. Mains are all ok, although #4 a tad tight at the minimum spec at 0.001”. The rods were all on the big side, over the limit. I might try another set of bearings and see what happens. If...

@fantastic No. I towed more or less the same area/conditions. And the same trailer. There is far less towing miles on the last sample vs the 6100

This is still ongoing leaching from copious amounts of silicone on the upper and lower oil pans. Insane amounts used. There is a fair amount of idle hours, but all fast idle. And I can’t really say it’s any more than summer time. I was towing through the beginning of November and took the...

Changed oil and filters. 8206 miles 308 hours. Fuel dilution is interesting…doesn’t track linearly in this inverval. Looks like I could have rode this out a bit longer. Anyone have an explanation? Fair jump in iron wear and aluminum wear rate in just 2000 miles. One point of interest...

That spot is a very common leak point. The surface area of the silicone sealing surface is smallest there. The torque should be 22 lb +45 degrees on the smaller bolts. I have found the motorcraft metal surface prep wipes make a big a big difference in adhesion to the aluminum when doing this...

Second one has been in and out of the shop alot recently with small coolant leaks/loss. First time I got my hands on it and found a ruptured EGR cooler which has been the source of the issues. Cooler will be ordered Monday.

2 more ISL Cummins. This first one had a laundry list of repairs on this truck. The rear main seal was leaking, as well as the oil on gasket and air compressor gasket. This truck also got a new set of king pins, and a full PM service with fluids/filters. Also descaled the chassis front to...

Stripped down a 3.7 for machine work. This one spun 2 rod bearings, and the rest were very beat up. I am not a fan of reconditioned rods especially with the cost of 45$ for new ones each so going to get 6 new connecting rods. Mains in excellent condition. Crank will probably need to be cut...

It’s thinner than it looks. Just speaking from experience from working in fords in the northeast almost my entire career.

There’s no stopping that. I’d try to find a different bed if you plan on keeping it. It wilo Be the cheapest option in the long run. The bed rails are already junk, there is a decent size hole on the middle right of the photo. The bed floor won’t be far behind.

ISL 9 Cummins in a fire apparatus. Replaced exhaust manifold gaskets and bolts, resealed EGR cooler, replaced and program VGT actuator along with all coolant line seals. Changed the rocker box gasket , valve cover gasket and oil filter mounting gasket. Replaced the DEF sending unit, driver...

3.7 water pump job with cam phasers. 2nd water pump job this week 😬

You need hot engine oil pressure readings. I wouldn’t be thrilled with 25 psi on a cold engine at 900 rpm

my go to is fluke 87V

Annually for me. Honesty it really depends on your fuel system. Common rails with pumps sensitive to outside contamination, definitely more often. HEUI injectors I would be less concerned with. No expensive pump failures that take everything out with it