hey folks, just finished doing a top end rebuild on my 80 2.8 V6q....it runs great, but it still has a minor issue which it's always had since i've owned it...
There seems to be a power lag that happens when you open up the taps, it's quite hard to explain but i'll try.
Obviously i'm not gonna push the car by any means at the moment while it's all setting in....but a nice 100mile run to cornwall and back yesterday certainly helped bring it to life.
ok, typical senario...
In 3rd bring it up 3500rpm, change to 4th, put foot down (not to hard but enough to pick up speed at a reasonable pace) car pulls great for a second then the car pulls it selfs back with a low drone from the exhaust like it struggling for air for about half a second then picks up again rapidly to 3500/4000rpm, change to 5th, then same senario as above??? I hope that explained it alrite
Timing is spot on, all fuel lines are clear, has new fuel filter....well anything you would do in a top end rebuild and a service has been done except....the valves, buckets, cam bearings and what not were solid and perfect....the only issue for the action of a top end rebuild was a oil leak from the head gaskets....engine is now water/oil/bloody tight...so no worries there.
When I got the car the catalytic converters were'nt there which is fine as I would removed them anyway. Both lambda sensors are there and had white-ish coating on them. Would these need to be removed/replaced?? Or is it a possible MAF sensor problem? I have no understanding on any of the sensors really, which looks f**king stupid as I type that bad hay ho.
Sorry for the long winded explaination. Any other idea welcome.
Regards
Jay
There seems to be a power lag that happens when you open up the taps, it's quite hard to explain but i'll try.
Obviously i'm not gonna push the car by any means at the moment while it's all setting in....but a nice 100mile run to cornwall and back yesterday certainly helped bring it to life.
ok, typical senario...In 3rd bring it up 3500rpm, change to 4th, put foot down (not to hard but enough to pick up speed at a reasonable pace) car pulls great for a second then the car pulls it selfs back with a low drone from the exhaust like it struggling for air for about half a second then picks up again rapidly to 3500/4000rpm, change to 5th, then same senario as above??? I hope that explained it alrite
Timing is spot on, all fuel lines are clear, has new fuel filter....well anything you would do in a top end rebuild and a service has been done except....the valves, buckets, cam bearings and what not were solid and perfect....the only issue for the action of a top end rebuild was a oil leak from the head gaskets....engine is now water/oil/bloody tight...so no worries there.
When I got the car the catalytic converters were'nt there which is fine as I would removed them anyway. Both lambda sensors are there and had white-ish coating on them. Would these need to be removed/replaced?? Or is it a possible MAF sensor problem? I have no understanding on any of the sensors really, which looks f**king stupid as I type that bad hay ho.
Sorry for the long winded explaination. Any other idea welcome.
Regards
Jay