My poor, beloved MV6 has developed a very worrying noise from the engine. Sounds very metallic, almost like a lifter but much, much louder, and probably double the frequency.
This happened during an LPG conversion at the weekend with Kevin Wood and Chrisgixer. The only parts of the engine that were touched were the inlets and the cooling system rerouted.
Difficult to pinpoint the noise to either bank, sounds more like its coming from under plenum, but at a loss as to what it could be?
The car starts OK, and idles at a steady fast idle as expected, except the noise. No oil light. No tried increasing revs, as it really doesn't sound good.
Aux belt currently off the crank pulley to eliminate anything that runs.
I have had to leave the car at Kevin Wood's house, as with that noise, I don't think it would make it out of the village, let alone the trip home
Any places to start?