Post by steveclapham on Jun 26, 2007 11:17:19 GMT 1
Hi all, thought I would just share the engine running problems I have experienced .
Since fitting a 1641 big bore to the dormobile there has been a number of running problems.
First I had been advised that the engine overheating was definitely related to the timing retarded. The problem seemed at first intermittent having the classic popping on deacceleration. This apart from timing could be carburation the float chamber valve passing or maybe blocking jets ect..
Not having a good enough timing light (the timing I had set statically using a simple bulb to the points. When the points open the light comes on and thats when plug one fires. Checkout where the crank pul.ley is and bingo. Er.. close anyways.).
So took the bay to one of the best guys I know 'Bucko' at Fairdeal. His logic is excellent but strongly controlled by landrovers and big engines.
Didn't have the time, but put all the gear on and says; 'don't care mate its overfuelling. Check carb and look for air leaks.'
we counted and with beg steal and borrow tried four carbs including a 2nd hand E Bay thing. Beginning to think a valve is burned out probably on no. 3. Just when maybe thought I had sorted it finding a tight tappet, had to turn round from Ripley show road taking the oval instead.
Took the van to colin Hicks who sorted out the MOT but still left me wondering advising a new exhaust, inlet rubbers and a new carb.
Spent a couple of hundred at Just Campers. Having taken the clips from the 3&4 inlet manifold rubber, was surprised to feel the casting loose .
Result at long last. The manifold nuts had vibrated undone and as the casting let in more air the mixture degraded. So the manifold now has spring washers on and the bay runs and sounds much better . Didn't really like the 4 point Monza. The new carb has no choke issues I had found earlier with 2nd hand ones. The old manifold rubbers were cracked on the inside too mindst. ;D
Plenty of points to Bucko needed to look deeper. Lots of points to Colin Hicks who did a great job sorting the MOT which was a bargain. He ran out of time for a clearer look at the engine but helped direction wise too.
Since fitting a 1641 big bore to the dormobile there has been a number of running problems.
First I had been advised that the engine overheating was definitely related to the timing retarded. The problem seemed at first intermittent having the classic popping on deacceleration. This apart from timing could be carburation the float chamber valve passing or maybe blocking jets ect..
Not having a good enough timing light (the timing I had set statically using a simple bulb to the points. When the points open the light comes on and thats when plug one fires. Checkout where the crank pul.ley is and bingo. Er.. close anyways.).
So took the bay to one of the best guys I know 'Bucko' at Fairdeal. His logic is excellent but strongly controlled by landrovers and big engines.
Didn't have the time, but put all the gear on and says; 'don't care mate its overfuelling. Check carb and look for air leaks.'
we counted and with beg steal and borrow tried four carbs including a 2nd hand E Bay thing. Beginning to think a valve is burned out probably on no. 3. Just when maybe thought I had sorted it finding a tight tappet, had to turn round from Ripley show road taking the oval instead.
Took the van to colin Hicks who sorted out the MOT but still left me wondering advising a new exhaust, inlet rubbers and a new carb.
Spent a couple of hundred at Just Campers. Having taken the clips from the 3&4 inlet manifold rubber, was surprised to feel the casting loose .
Result at long last. The manifold nuts had vibrated undone and as the casting let in more air the mixture degraded. So the manifold now has spring washers on and the bay runs and sounds much better . Didn't really like the 4 point Monza. The new carb has no choke issues I had found earlier with 2nd hand ones. The old manifold rubbers were cracked on the inside too mindst. ;D
Plenty of points to Bucko needed to look deeper. Lots of points to Colin Hicks who did a great job sorting the MOT which was a bargain. He ran out of time for a clearer look at the engine but helped direction wise too.