I wish Got to order a shim kit from America Knew this before I started though and that's why I did it now cause won't be riding next weekend cause of nec
Strange that ,they normally decrease but with it being a low revving twin I suppose they could increase. .5mm is .020 which is massive. You have measured on the back of the cam with the lobe pointing away from the valve ? What's the valve clearance spec ?
Normally the gap would increase due to wear of the valve train, a decrease is more worrying and dangerous for the engine as the valves will open earlier and for longer. Your right about a 0.5mm gap is a big, backlash of gears could be the problem.
On high revving engines the gap decreases in general. The gears don't come into play if your going off the back of the cam as opposed to timing marks.
EXHAUST (right) EXHAUST (left) INLET (right) INLET (left) EXISTING SHIM SIZE (mm) 298 300 272 232 MEASURED CLEARANCE (mm) 0.18mm 0.15mm 0.10mm 0.10mm Front Syl EXHAUST (right) EXHAUST (left) INLET (right) INLET (left) INLET (centre) EXISTING SHIM SIZE (mm) 298 298 272 278 If applicable MEASURED CLEARANCE (mm) 0.10mm 0.10mm 0.11mm 0.13mm If applicable Rear Syl Decided to remeasure after collage tonight to make sure now got all them accurate time to work out what new shims needed lol
No probs, I'll try to get to work the figures out for you tomorrow, only just seen this and your pm and got to go offline for the evening now. If you can let me know what the correct clearance ranges are that'd help with the calculations. On here or pm is fine.
Table is wrong too that one that has 232 wrote on the shim measures 2.82 Ian have me a hand aswell earlier too so I know what I'm doing now :unsure:
Shims replaced ect cams and head back on radiator back connected just need to work out how much coolant and water now to refill quite enjoyed doing it
Usually a 50/50 mix, should be able to find the quantity online. I'd expect about 1.5-3 litres depending.
