Spark Plug Blown Out?

[Gerald]

OK, loads of good advice received, thanks. I ended up chasing the thread like Gerald suggested, then new plug finger tight plus a 1/4 turn. Didn't want to take the risk of torquing it up too much. After waiting ages for the new HT leads to get here (anybody'd think there was a war around here or something), finally fired it up. It works! Eid Mubarak! Great joy and merriment all round! Engine up to temp, a quick test ride round the block and all is good; longer run imminent.

Quick question though, as always - while faffing around I must've dislodged the MAP sensor, leading to an odd idle and check engine light. Easily diagnosed and fixed by pushing the tube back in but while I had TuneECU connected I noticed the cylinder MAP readings at idle are 650, 620, 630. I know general guidance is to keep these within 10 hPa of each other, but is it worth correcting right now, or can I leave it for a while? I'm kinda keen to get out on the beast again, been deprived for too long.

Good to balance, but you could probably hold off for a while, although, it doesn't take long to do and should make for better throttle response and smoother idle.

 

[Bunny Burrell]

OK, loads of good advice received, thanks. I ended up chasing the thread like Gerald suggested, then new plug finger tight plus a 1/4 turn. Didn't want to take the risk of torquing it up too much. After waiting ages for the new HT leads to get here (anybody'd think there was a war around here or something), finally fired it up. It works! Eid Mubarak! Great joy and merriment all round! Engine up to temp, a quick test ride round the block and all is good; longer run imminent.

Quick question though, as always - while faffing around I must've dislodged the MAP sensor, leading to an odd idle and check engine light. Easily diagnosed and fixed by pushing the tube back in but while I had TuneECU connected I noticed the cylinder MAP readings at idle are 650, 620, 630. I know general guidance is to keep these within 10 hPa of each other, but is it worth correcting right now, or can I leave it for a while? I'm kinda keen to get out on the beast again, been deprived for too long.

I was thinking, as for balancing the tubes, you know you asked me about the Ramair kit. If you’re going in that direction, you’ll be retuning it anyway.

 

[Heidhurtin]

True, but rhe Ramair is a distant proposal, at least until I find gainful employment. Right now, after spending wodsadosh on the HT leads and needing new brake pads and tyres......