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Jul 16, 2008 5:31 pm
Jul 16, 2008 5:31 pm
Subject: Re: Intermittent firing with my engine
Thank you Peter for the reply. I have undertaken all that you suggest and when the engine runs it runs very well, it’s most perplexing!
I replaced the distributor cap with a new cap of the correct type and put new plugs in, the car fired up on all cylinders and run like a train for three days. I thought I have fixed the problem but when I went to start her up on Sunday, back to the five cylinders. I was so fed up I had to just walk away and haven’t been back to it yet so It may still be the BIG HAMMER!
One thing I have found is the earth strap from the bell housing to the firewall has come apart and needs to be replaced... Question! Could a bad earth from the engine/gearbox to the firewall cause the engine to become intermittent?
It would seem that once I lose a cylinder it never returns without cleaning the plugs, the cleaning of the plug may be just my imagination who knows.
I intend to do a compression test which should resolve the sticking valve theory one way or the other. If it is a sticking valve why will the engine run so well over all speed ranges and never miss a beat (That is when it decides to run on all six cylinders).
I do have the flashing plug adaptors and they are all flashing which should mean the plugs are firing.
Any other suggestion/theories are most welcome.
Just a little frustrated!
Peter
Thank you Peter for the reply. I have undertaken all that you suggest and when the engine runs it runs very well, it’s most perplexing!
I replaced the distributor cap with a new cap of the correct type and put new plugs in, the car fired up on all cylinders and run like a train for three days. I thought I have fixed the problem but when I went to start her up on Sunday, back to the five cylinders. I was so fed up I had to just walk away and haven’t been back to it yet so It may still be the BIG HAMMER!
One thing I have found is the earth strap from the bell housing to the firewall has come apart and needs to be replaced... Question! Could a bad earth from the engine/gearbox to the firewall cause the engine to become intermittent?
It would seem that once I lose a cylinder it never returns without cleaning the plugs, the cleaning of the plug may be just my imagination who knows.
I intend to do a compression test which should resolve the sticking valve theory one way or the other. If it is a sticking valve why will the engine run so well over all speed ranges and never miss a beat (That is when it decides to run on all six cylinders).
I do have the flashing plug adaptors and they are all flashing which should mean the plugs are firing.
Any other suggestion/theories are most welcome.
Just a little frustrated!
Peter