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I replaced the injectors with the original ones after cleaning them, purged air ( they all shot out fuel like a hose ) and no change in white smoke. I’m at a loss and not sure what else to check or replace

I have re-bled the fuel lines cracking open at each injector and they all shot out fuel like a hose, except for #2, it more like trickled out fuel.

I replaced the radiator with a 4 core aluminum radiator last winter and have only driven it about 1,000 miles since then. It hasn’t leaked any, it runs fine, never gets hot or overheats, or trouble starting when it’s warm. I just checked the radiator and it’s full to the top. The reservoir may...

I took a video trying to show the white smoke, although it doesn’t look bad on video it is a lot worse in person, and I have to pull the truck out of the garage because even with the doors and windows open it quickly makes your eyes burn https://youtube.com/shorts/zpP6CASt6ZU?si=jrCG9FzCGaiKC6JC...

I have checked all lines for cracks and tightened all fittings, still smokes white. After checking everything to this point, I am thinking the valve seals are bad? Is there a way to tell without pulling the valve springs?

How can I check for cracks or holes in fuel supply line, if it’s not leaking fuel, but sucking air?

The dynamite diesel new injectors come with new washers for the injectors so I used them. I have advanced the timing 1/8” by rotating the pump to the head, and now I have rotated the pump all of the way to the head. Is there any other way to adjust the timing without jumping a tooth? Right now...

My new injectors are 155, that’s all that dynamite diesel offers, but my surely original Bosch injectors that I replaced them with smoked the same

Well I’ve determined that I have the keyway installed and it’s not a timing issue causing the white smoke. It’s a constant white smoke that doesn’t clear up, burns your eyes fuel smell. So what else could be the cause? Bad valve seals?

Yeah it’s only 3/16” tall. So I can see it maybe being in there, not sticking up much. I’m surprised they aren’t taller to better grab the gear

I will post up a picture of the replacement keyway I got from Cummins tonight when I get back in the garage, the new one is not very tall and I can see it not sticking up much if there is one in my truck.

I have been told the keyway doesn’t stick up much, I ordered a new keyway and that makes sense after seeing how short the new keyway is. It looks like it may be in there still when I shine a light on a small mirror down there. I’m not certain though, so I might pull the timing cover again to...

well maybe it’s in there I’ll post a pic I read this top part of the article and thought maybe you hat was my problem: https://rotordesign.com/1993cummins/category/bosch-ve-pump/page/2/

What problem did you have with the ksb? Also my truck smokes white all the time, even after warming up

I pulled the injection pump shaft nut off, to add a lock washer and I was curious if the key way was there I couldn’t see down there but I have a small mirror and flashlight, it looks like the key way is missing

Yes I just put in new 5x12’s and it’s still smoking white

I have replaced the thermostat with a new Cummins one with no change. I have removed the tamper proof caps on the injection pump myself when adding the fuel pin, gov spring but haven’t adjusted anything on the pump.

I have rotated the pump back to the stock setting, no change in smoke. I loosened each injector line while running, fuel came out and the idle changed for each. Once the truck warmed up, I took heat readings on the manifold and head for each cylinder showing compression of each cylinder. I...

I advanced the timing rotating the pump to the head 1/8” I was told that can’t cause white smoke. The timing gear tooth is on “E” what else can I look for as far as timing issue?

Hello, trying to get my 1991.5 Cummins truck running good, I have been replacing lots of parts over the last 4 years trying to make the truck a solid dependable daily driver / long trip capable truck. The truck has smoked white at idle, after it warms up, and while driving the truck since I got...