Hello, all.
I recently installed a Diesel42 (Thanks again Keith, great stuff) turbo kit on my 85 BJ60.
Install was a bit interesting as the 3b sits farther back in the bay than the 40 causing the downpipe to be extremely close to the firewall. I had to loose my AC compressor sadly as well for the oil feed line but, I have some thoughts for that at a later date.
Anyway, the issue I'm having is that post turbo install my coolant temps are shooting up after only 10 minutes of driving. I did have to swap a hose to fit the turbo, so the system was opened during install. I am thinking there might be air in the system but I have run it with the cap off elevated and left it for a few days to see if the air would move. I should also say my egts are quite high, I'm pushing 15 psi at peak load and the fuel was turned up about 3 turns (I think it was leaned before because I've never seen even a puff of smoke out the pipe stock on hills, cold starts, or gear changes. At any rate I've messed with the fuel up and down as much as I can and it seems to make no real difference aside from power difference. I am hitting 1200°F (pre turbo) every time I take it to 2500rpm or higher. If I stay there too long it climbs quickly and would hit 1300°F if I kept going.
Maybe I should mention is that I haven't got my exhaust done yet. It's still just the downpipe and I'm wondering if maybe there's some chance it's being blown up into the engine bay. I'm just not sure if there's need of an intercooler or something, but I've heard of others that don't run one and they seem to not have the same issues as me.
And on a final note, I haven't had a chance to do a compression test, but I have certain suspicions that maybe one of my cylinders has bad compression. There's enough blowby that I can't fill oil while the beast is running. Otherwise it has not given me issues much at all.
Any ideas would be appreciated.
I recently installed a Diesel42 (Thanks again Keith, great stuff) turbo kit on my 85 BJ60.
Install was a bit interesting as the 3b sits farther back in the bay than the 40 causing the downpipe to be extremely close to the firewall. I had to loose my AC compressor sadly as well for the oil feed line but, I have some thoughts for that at a later date.
Anyway, the issue I'm having is that post turbo install my coolant temps are shooting up after only 10 minutes of driving. I did have to swap a hose to fit the turbo, so the system was opened during install. I am thinking there might be air in the system but I have run it with the cap off elevated and left it for a few days to see if the air would move. I should also say my egts are quite high, I'm pushing 15 psi at peak load and the fuel was turned up about 3 turns (I think it was leaned before because I've never seen even a puff of smoke out the pipe stock on hills, cold starts, or gear changes. At any rate I've messed with the fuel up and down as much as I can and it seems to make no real difference aside from power difference. I am hitting 1200°F (pre turbo) every time I take it to 2500rpm or higher. If I stay there too long it climbs quickly and would hit 1300°F if I kept going.
Maybe I should mention is that I haven't got my exhaust done yet. It's still just the downpipe and I'm wondering if maybe there's some chance it's being blown up into the engine bay. I'm just not sure if there's need of an intercooler or something, but I've heard of others that don't run one and they seem to not have the same issues as me.
And on a final note, I haven't had a chance to do a compression test, but I have certain suspicions that maybe one of my cylinders has bad compression. There's enough blowby that I can't fill oil while the beast is running. Otherwise it has not given me issues much at all.
Any ideas would be appreciated.
