Hey guys
So im the proud owner of a 12v 1982 bj42. For the last 4 months or so ive been having a few issues with it. Ive tried multiple times to fox it and everytime i think i have but then 2 weeks later the gremlin is back.
So whats happening is basically it wont idle smoothly. As if its on 3 cylinders and then stall. It doesnt stall everytime but it seems to get worse the longer i drive it for. Sometimes ill get a week before this happens and other times it wont even let me drive it before it dies.
When it does die i pump the hand pump for a bit then start it again. Usually it will run for 10 seconds then die. So i open the bleed valve, theres a hiss of air. Then i bleed out the air which there is a fair bit of then its a 50/50 shot if it will run.
So far things ive done are:
Taken off all injector lines and cleaned where they seat on the injectors.
Removed fuel tank and cleaned
Emptied sedimentor
Changed the fuel filter
Checked the small gauze filter in the fuel pump (it was perfectly clean)
Visually inspected all rubber fuel lines
I havent been able to find any drips or cracks in any lines but im at the point where im thinking of replacing them all and giving it some new clamps aswell.
Im also considering buying a bosch primer and replacing the brass looking one thats on there atm just to eliminate that.
Right now its parked and its running and it revs fine. But once i lift my foot off and the revs drop back to idle it goes back to 3 cylinders and is rough and then over the next 15 or 20 seconds it will come back to its normal smooth idle.
When i drive it at highway speed occasionally it will lose all power and i start to slow down as the revs drop and as i get slower and slower they keep falling and i change down to try and keep them up. Then suddenly itll kick back to life and ill be good to accelerate back up as per normal.
It seems that the longer i drive it it gets worse. I was on the highway for 2 hours once and the losing power thing happened a couple of times but i was trying to nurse her home. As soon as i turned off and slowed down a bit the power left and it slowed down until it stalled. No matter how much bleeding i did i cohldnt get it started so i had it towed. Next morning the mechanic bled it once and it started fine. He didnt know what was wrong with it and seemed to think it was fine.
The primer pump doesnt reach the end of the injector lines (not sure if this is normal). It pumps well out of the bleed valve near the filter but when i close that and crack an injector it pumps but jo matter how long i pump for fuel never comes out the end.
Sorry this post is all over the place. I kept remembering new things as i typed so hopefully it all makes sense. I have searched the forums and some of the stuff i checked was from there but i dont have a computer at the moment so it was a little hard.
Anything you can think of would be a massive help. Im not a mechanical genius so please forgive me if i missed something silly
So im the proud owner of a 12v 1982 bj42. For the last 4 months or so ive been having a few issues with it. Ive tried multiple times to fox it and everytime i think i have but then 2 weeks later the gremlin is back.
So whats happening is basically it wont idle smoothly. As if its on 3 cylinders and then stall. It doesnt stall everytime but it seems to get worse the longer i drive it for. Sometimes ill get a week before this happens and other times it wont even let me drive it before it dies.
When it does die i pump the hand pump for a bit then start it again. Usually it will run for 10 seconds then die. So i open the bleed valve, theres a hiss of air. Then i bleed out the air which there is a fair bit of then its a 50/50 shot if it will run.
So far things ive done are:
Taken off all injector lines and cleaned where they seat on the injectors.
Removed fuel tank and cleaned
Emptied sedimentor
Changed the fuel filter
Checked the small gauze filter in the fuel pump (it was perfectly clean)
Visually inspected all rubber fuel lines
I havent been able to find any drips or cracks in any lines but im at the point where im thinking of replacing them all and giving it some new clamps aswell.
Im also considering buying a bosch primer and replacing the brass looking one thats on there atm just to eliminate that.
Right now its parked and its running and it revs fine. But once i lift my foot off and the revs drop back to idle it goes back to 3 cylinders and is rough and then over the next 15 or 20 seconds it will come back to its normal smooth idle.
When i drive it at highway speed occasionally it will lose all power and i start to slow down as the revs drop and as i get slower and slower they keep falling and i change down to try and keep them up. Then suddenly itll kick back to life and ill be good to accelerate back up as per normal.
It seems that the longer i drive it it gets worse. I was on the highway for 2 hours once and the losing power thing happened a couple of times but i was trying to nurse her home. As soon as i turned off and slowed down a bit the power left and it slowed down until it stalled. No matter how much bleeding i did i cohldnt get it started so i had it towed. Next morning the mechanic bled it once and it started fine. He didnt know what was wrong with it and seemed to think it was fine.
The primer pump doesnt reach the end of the injector lines (not sure if this is normal). It pumps well out of the bleed valve near the filter but when i close that and crack an injector it pumps but jo matter how long i pump for fuel never comes out the end.
Sorry this post is all over the place. I kept remembering new things as i typed so hopefully it all makes sense. I have searched the forums and some of the stuff i checked was from there but i dont have a computer at the moment so it was a little hard.
Anything you can think of would be a massive help. Im not a mechanical genius so please forgive me if i missed something silly
