Cummins swap/frame question
#466
#467
I was rather bummed a couple weeks ago, me and my son spent the whole day (fathers day) trying to get it running, and just could not get it to fire up.
Pulled the injectors and ran a compression test last weekend, all looked good. Took the injectors over to have tested, and two were stuck open. Put the injectors in today, and it started so quick and easy, like it did back when I had it running on the shop floor.
Pulled the injectors and ran a compression test last weekend, all looked good. Took the injectors over to have tested, and two were stuck open. Put the injectors in today, and it started so quick and easy, like it did back when I had it running on the shop floor.
#471
After adding a bit more exhaust pipe, I took it for another short drive. This time I got it out on the highway for a bit, about 2 miles, before turning around and coming back to the shop. No idea how far off the speedometer is, but it at least shows something.
I was a bit nervous about how well it could cope with the rather tall rear gear ratio (2.75) in OD, but it pulled rather well. Surprising, when you consider the final drive ratio is 2.0075 : 1 (2.75 X .73 OD). This means the engine is only turning twice the RPM as the tires.....
Have to remove the top of the injection pump to fix a leak. Not only does it get fuel everywhere, but it allows air into the pump when shut off, making it hard to start if I don't pump the manual primer lever. At least it has one........
Brakes are rather soft, probably still have air in the master cyl, but it stops without any drama. Haven't even knocked all the rust off the rotors yet.
Engine runs rather cool, once the t-stat opens. At some point, I will be adding a cooling fan of some sort. Will also be draining the water out, and putting in real coolant. The fan will become mandatory when I start getting the A/C plumbed.
Overall, I'm pleased with how it runs, but there's a few little things left to sort out.
I was a bit nervous about how well it could cope with the rather tall rear gear ratio (2.75) in OD, but it pulled rather well. Surprising, when you consider the final drive ratio is 2.0075 : 1 (2.75 X .73 OD). This means the engine is only turning twice the RPM as the tires.....
Have to remove the top of the injection pump to fix a leak. Not only does it get fuel everywhere, but it allows air into the pump when shut off, making it hard to start if I don't pump the manual primer lever. At least it has one........
Brakes are rather soft, probably still have air in the master cyl, but it stops without any drama. Haven't even knocked all the rust off the rotors yet.
Engine runs rather cool, once the t-stat opens. At some point, I will be adding a cooling fan of some sort. Will also be draining the water out, and putting in real coolant. The fan will become mandatory when I start getting the A/C plumbed.
Overall, I'm pleased with how it runs, but there's a few little things left to sort out.
#473
#478
#480
As for the MPG guesses, I'm hoping to top 30. But, anything over 15 will be an improvement on what it did with the gas 6.......