F350camper
BOOST!
Well fellas it looks like the man is going to sell me a few more gallons of diesel while I secure my WVO source, and adapt my refinery to better handle WVO as opposed to WMO.
I’m satisfied that an IDI will run quite well on WMO, especially filtered down to 2 microns, and heated to 170° before it hits the injection pump. However, this stuff cokes. Even though I’ve been religiously shutting down on #2, and extending my purge times up to 15 minutes, my truck developed a hard start condition at anything less than 70°. So yesterday I drove around all day on diesel got home and let it idle in the driveway for 10 more minutes. So I knew I had 100% #2 in the system when I shut her off. 50° this morning, and truck was hard to start.
So I pulled a GP to have a look, and my suspensions were confirmed. The GP unscrewed nicely, but wouldn’t come out of the hole. So I grabbed a hold of it and twisted it back and fourth and gradually worked it out. (this GP is about a year old by the way) As I suspected, nearly the entire part of the GP ‘probe’ is coked up. Most of it was surely knocked off during the removal process, but I had a fairly thick yellow coating all over most of the plug with heavy thicker black carbon buildup near the threads.
I don’t think I’ve done any damage to my injectors yet as the truck runs and drives well with no new noise or smoke, though they probably aren’t producing a very nice spray pattern. I’m thinking the hard starting is being caused by the thick layer of coke built up on the GPs, sort of an early indication of bigger problems if I continue down this path. This is more than likely aggravated by coke that is building up on the injectors and slowly filling the pre-cups.
My plan is to drive the truck all this week on #2, do some hi-temp runs and see if my starting returns to normal. If not, I’ll pull the GPs and clean them, and if that doesn’t do it, I’ll do the same to the injectors. But I think I caught it early enough that several days on #2 will straighten her out. Then I’m going switch to veggy and see where I end up. Just wanted to keep you guys informed.
I’m satisfied that an IDI will run quite well on WMO, especially filtered down to 2 microns, and heated to 170° before it hits the injection pump. However, this stuff cokes. Even though I’ve been religiously shutting down on #2, and extending my purge times up to 15 minutes, my truck developed a hard start condition at anything less than 70°. So yesterday I drove around all day on diesel got home and let it idle in the driveway for 10 more minutes. So I knew I had 100% #2 in the system when I shut her off. 50° this morning, and truck was hard to start.
So I pulled a GP to have a look, and my suspensions were confirmed. The GP unscrewed nicely, but wouldn’t come out of the hole. So I grabbed a hold of it and twisted it back and fourth and gradually worked it out. (this GP is about a year old by the way) As I suspected, nearly the entire part of the GP ‘probe’ is coked up. Most of it was surely knocked off during the removal process, but I had a fairly thick yellow coating all over most of the plug with heavy thicker black carbon buildup near the threads.
I don’t think I’ve done any damage to my injectors yet as the truck runs and drives well with no new noise or smoke, though they probably aren’t producing a very nice spray pattern. I’m thinking the hard starting is being caused by the thick layer of coke built up on the GPs, sort of an early indication of bigger problems if I continue down this path. This is more than likely aggravated by coke that is building up on the injectors and slowly filling the pre-cups.
My plan is to drive the truck all this week on #2, do some hi-temp runs and see if my starting returns to normal. If not, I’ll pull the GPs and clean them, and if that doesn’t do it, I’ll do the same to the injectors. But I think I caught it early enough that several days on #2 will straighten her out. Then I’m going switch to veggy and see where I end up. Just wanted to keep you guys informed.
