Meant to curve out and be staked in place, I don't replace that unless I 100% have to.
Only additional advice I can give is if a plug is even slightly suspect after you fit it pop it out bin it and try again, this job has to be 100% perfect the potential for disaster is very high if one falls...
Danger here being one of the N00b's is going to see your post and think "Hey I'll give it a go I have strings".......
It's bad enough some of the muppets think it's too expensive to get the car aligned correctly and would rather throw tires at it every 4k miles :nono:
I have friends that...
HUGE difference between a double a arm IRS car and a Nascar....:nono:
I'd love to see someone try to do a 4 wheel alignment on an a70 and then check the results on a rack....
Try it and see.....
Without some way to monitor knock it's all just guesswork.
I tend to go for a conservative tune and don't like to run on the ragged edge so as I said any gains you get from doing this are fqr outweighed by the potential for disaster. (you would struggle to see an...
Personally I think any gains are so small they're outweighed by the risk of damage/decreased performance if you get a dud load of fuel.
Think of the Knock Sensors as "Explosion Detectors" they take action after the fact and often with a 7M that can be too late and ends in :cry:
Why do you think changing the base timing is going to lean out anything?
Detonation damage from doing the above if the octane can't support the new timing ISN'T going to turn the engine into a plasma cutter it may BHG or break ring lands.
Plumbing the accumulator in on the non filtered side =bad
Clearences are pretty close to what I ran in my old 7M, I had a good result using Castrol 10/60 Synthetic and a 5mm shim in the pump relief.
2mm bigger valves huh?
I'm willing to put $ on it it's not valvetrain noise.....
(unless the oil feed to the head is 100% blocked and it's slowly eating itself)
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