Def west ender
New Member
My Landy is still eating Petrol and LPG (8-10mpg at best), I've tried everything but am at a loss (both mentally and pocket) so am asking for help.
It's a 1984 Defender with:
Brand new 4.6, 4.6 heads, new cam, timing chain etc.. the whole works mated to a 4 speed ZF auto box. Just fitted new leads, plugs, cap, rotor arm too and all set up as best as possible. It also has no cats with 4 branch, distributor (new), hotwire system, brakes not binding either.
It runs reasonably fine, but not as powerful as it should be (my opionion), a bit lumpy and not as smooth as a V8's I've had in the past, but by no means awful. It's been to a couple of mechanics the last one deals with LPG and races Rover V8's and seems like he knows what he's talking about, but even he can't quite work it out.
It runs very rich and on petrol will foul the plugs in 3 minutes (very sooty and black), he first thought it was a very worn out cam, but when we removed the inlet it was perfect (inlet then cleaned and put back), he now thinks that perhaps when the engine was put back together the cam may have been put back a tooth out, he says that the ecu would compensate for this so it would run ok'ish but just run very rich. The last car I had that had a cam 1 tooth out (K-series) did run but was very noticeable it was wrong.
Any ideas? Big thanks in advance.
It's a 1984 Defender with:
Brand new 4.6, 4.6 heads, new cam, timing chain etc.. the whole works mated to a 4 speed ZF auto box. Just fitted new leads, plugs, cap, rotor arm too and all set up as best as possible. It also has no cats with 4 branch, distributor (new), hotwire system, brakes not binding either.
It runs reasonably fine, but not as powerful as it should be (my opionion), a bit lumpy and not as smooth as a V8's I've had in the past, but by no means awful. It's been to a couple of mechanics the last one deals with LPG and races Rover V8's and seems like he knows what he's talking about, but even he can't quite work it out.
It runs very rich and on petrol will foul the plugs in 3 minutes (very sooty and black), he first thought it was a very worn out cam, but when we removed the inlet it was perfect (inlet then cleaned and put back), he now thinks that perhaps when the engine was put back together the cam may have been put back a tooth out, he says that the ecu would compensate for this so it would run ok'ish but just run very rich. The last car I had that had a cam 1 tooth out (K-series) did run but was very noticeable it was wrong.
Any ideas? Big thanks in advance.