- 8,655
- 3,017
- 113
- Location
- Monrovia, Ca.
Oh, again, the screen in the pump, the one under that big azz flat head screw, is only there so that in case of a catastrophic fuel pump failure, the debris from the pump will not get into the injectors. It isn't a maintenance item. HOWEVER, in the case of something sitting and getting gooed up fuel, having water infused fuel run through the system, that screen will get plugged. If when removed, the screen filter was plugged with rust or gelled fuel, the injector screens are 99% full of the same stuff.
Rust, if the screen filter in the pump was rusty on the outside, that means the injectors are too. That filter filters backwards, filters inside out, hence the magnet inside the filter. So, if there are rust stalagmites on the outside of the fuel pump screen filter, the injectors are the same way. SOMETIMES the screens can be removed, the plunger pulled from the body, cleaned with scotch brite, cleaned thoroughly, lubed with clean fuel or WD40 and put back into the body, and things will work fine.
DO NOT pull all of the plungers out at one time, remember those parts, the plunger and barrel are lapped to one another and cannot be inter mixed. Do them one at a time.
To the OP, If you do end up pulling the injectors, PM me before you start. I can give you some hints.
Rust, if the screen filter in the pump was rusty on the outside, that means the injectors are too. That filter filters backwards, filters inside out, hence the magnet inside the filter. So, if there are rust stalagmites on the outside of the fuel pump screen filter, the injectors are the same way. SOMETIMES the screens can be removed, the plunger pulled from the body, cleaned with scotch brite, cleaned thoroughly, lubed with clean fuel or WD40 and put back into the body, and things will work fine.
DO NOT pull all of the plungers out at one time, remember those parts, the plunger and barrel are lapped to one another and cannot be inter mixed. Do them one at a time.
To the OP, If you do end up pulling the injectors, PM me before you start. I can give you some hints.