4y EFI "mis" idling.
Posted: Wed Sep 27, 2023 7:36 pm
Hi guys
I have a imported 4y that I converted to EFI a while back. Spitronics Orion 2 advance computer with a gwm intake and a 4y electronic distributor converted to a hall pickup.
I drove the other day to a shop all good, then when i went back home the bakkie started to splatter and drive real crap. Couldn't even get to 40km/h.
So the troubleshooting started. Checked compression all fine, all injectors fine, but noticed a orange spark on the plugs. Timing also on point.
Changed the coil, still the same. Then today I replaced the spark plugs. Boom! The bakkie drives great and better than before. But 20 km further, it started again with its problems.
Sparkplugs has oil residue on the tips which decreases the spark strength.
Can it be the valve stem seals ?
Also, can the valve stem seals be replaced without removing the head?
Kind regards
Brand Oosthuizen
I have a imported 4y that I converted to EFI a while back. Spitronics Orion 2 advance computer with a gwm intake and a 4y electronic distributor converted to a hall pickup.
I drove the other day to a shop all good, then when i went back home the bakkie started to splatter and drive real crap. Couldn't even get to 40km/h.
So the troubleshooting started. Checked compression all fine, all injectors fine, but noticed a orange spark on the plugs. Timing also on point.
Changed the coil, still the same. Then today I replaced the spark plugs. Boom! The bakkie drives great and better than before. But 20 km further, it started again with its problems.
Sparkplugs has oil residue on the tips which decreases the spark strength.
Can it be the valve stem seals ?
Also, can the valve stem seals be replaced without removing the head?
Kind regards
Brand Oosthuizen