01-31-2021, 10:37 PM
(01-31-2021, 03:39 PM)zirconxi_imp Wrote:(01-31-2021, 08:02 AM)Django_imp Wrote:(01-31-2021, 02:07 AM)Dave_imp Wrote: spec (IN 0.006, EX 0.011).
The recommended shim size for EXHAUST is fine, but I have two choices for INTAKE. For INTAKE I have choice of 0.065 (recommended) or 0.051 new clearance. I was thinking I should pick 0.051 with the assumption that they will loosen over time.
*
I don't understand your numbers. The spec is .006 +/- .001, correct? Where are the values .065 and .051 coming from? Are these the shim thicknesses, or the actual valve clearances, which seems about a factor of 10 off.
Please clarify.
For this valve drive type the valves tighten over time, they do not loosen.
My intake valve is getting loose over time. Not much change for exhaust side. Could be cause by my frequent short ride or overly oiled K&N air filter causing carbon built up.
Personally I would try to aim at the middle of the spec, which ever side which is nearer. Shimming to any side of the spec is acceptable as long as its within the spec.
My intake valve is getting loose over time. Not much change for exhaust side. Could be cause by my frequent short ride or overly oiled K&N air filter causing carbon built up.
Personally I would try to aim at the middle of the spec, which ever side which is nearer. Shimming to any side of the spec is acceptable as long as its within the spec.
Yeah. If one is going through the time and exercise of getting into the valve area anyway to check the gaps, and if one or more is out - why not just go for as close as possible to mid-point of the spec?