I have an engine that's just spat out a big end. It sounded the same as this. Actually, it sounded just like a stuck lifter......
you can check easily. If you get the offending cylinder to TDC and rock it to and fro, a screwdriver down the plug hole will reveal any play that could be in the bearing.
Kevin, I was going to ask if I could pop by on thursay evening to talk MS with you. ( I'm in the South on thursday & friday ) we could have a chat over the car if you like - and if the owner is willing.
I'll come with tools and prepared for a head-removal, too. Can certainly get it stripped and the head off in an evening
just re-read this - where is the car currently ?
The car is with me in Four Marks.
I'd be happy to have a chat about Megasquirt, and should be around on Thursday.
I am hopeful that a check of the injector wiring might reveal something. I think it's highly unlikely that it's a big end but thanks for the tip anyway. Can't hurt to try it.
My comment about the big end was that if someone brought a car to me making those sort of noises without knowing the history that would be my first thought.
In this case, the car apparently enjoyed some spirited driving on the way over and sounded sweet enough when it was pulled into my garage. Unlikely for a big end to simply fail at start-up when it had previously been fine under load IMHO. Something caused by / related to the LPG install would be more likely.
Thanks for the offer of help. Let's see how it goes. Ultimately it's TheBoy's car so up to him what steps are taken to resolve it.
Kevin