I've been trying for some time to get my TR6 running correctly. Let me try and explain the problem and hopefully you experts can give me some pointers!
It runs super rich - smoky and eye burning rich.
When I lift the air Pistons it wants to stall.
The timing needs to be advanced past the scale to get a smooth idle.
Vacuum is steady at about 15" at 1300rpm or so.
EGR and EVAP are present but I've capped off everything for now to simplify troubleshooting. The vac gauge is connected to the servo connection.
I pulled the carbs on Friday and fixed a stuck choke disk. Everything else looked as it should.
The engine runs best with the carb needles fully rich and struggles if I lean it off.
There's no sign of the timing cover having been removed recently, the chain is quiet.
Tappets are quiet.
It revs happily, drives OK but is too smoky to take for a run.
Plugs are new.
Fuel is fresh, filter is new.
Air filters are off.
Air by-pass screws are all the way in.
Carbs are balanced ok.
Anti-popping diaphragms are adjusted to stay closed for now.
Distributor hose is connected.
It seems like a carb issue but I'm stumped. I read that 90% of carb issues are caused by the ignition but I don't know what to check other than timing? I can't adjust that to the factory spec so I have used the vacuum gauge to set it to peak vacuum.
Thanks for any suggestions!!
David
It runs super rich - smoky and eye burning rich.
When I lift the air Pistons it wants to stall.
The timing needs to be advanced past the scale to get a smooth idle.
Vacuum is steady at about 15" at 1300rpm or so.
EGR and EVAP are present but I've capped off everything for now to simplify troubleshooting. The vac gauge is connected to the servo connection.
I pulled the carbs on Friday and fixed a stuck choke disk. Everything else looked as it should.
The engine runs best with the carb needles fully rich and struggles if I lean it off.
There's no sign of the timing cover having been removed recently, the chain is quiet.
Tappets are quiet.
It revs happily, drives OK but is too smoky to take for a run.
Plugs are new.
Fuel is fresh, filter is new.
Air filters are off.
Air by-pass screws are all the way in.
Carbs are balanced ok.
Anti-popping diaphragms are adjusted to stay closed for now.
Distributor hose is connected.
It seems like a carb issue but I'm stumped. I read that 90% of carb issues are caused by the ignition but I don't know what to check other than timing? I can't adjust that to the factory spec so I have used the vacuum gauge to set it to peak vacuum.
Thanks for any suggestions!!
David