ALL VALVES Were TIGHT - Valve Adjustment Done DIY
03-30-2018, 09:24 AM
#11
Thread Starter
A standard set of feeler gauges goes from .006" to .020" (inches) https://www.amazon.com/Stanley-Proto.../dp/B001HWFLNG
.05mm equates to roughly .002". Two-Thousandths of an inch is VERY thin (about half the thickness of a sheet of copy paper). Unless you have a really weird set of feeler gauges you may want to check them and make sure you read the sizes correctly.
.05mm equates to roughly .002". Two-Thousandths of an inch is VERY thin (about half the thickness of a sheet of copy paper). Unless you have a really weird set of feeler gauges you may want to check them and make sure you read the sizes correctly.
03-30-2018, 09:41 AM
#12
Thread Starter
By the way when rotating the crank by hand I noticed that I didn't have to rotate it 180 degrees every time for the next cylinder to be at TDC. Just a few turns of the crank got the next cylinder's cam lobes to 11 and 2 o'clock. I rotated it 180 anyway for each cylinder after 1 though. I went clockwise too according to the helms (?) manual I found on robrobinette's site. Does rotational direction matter?
03-30-2018, 12:00 PM
#13
03-30-2018, 12:02 PM
#14
By the way when rotating the crank by hand I noticed that I didn't have to rotate it 180 degrees every time for the next cylinder to be at TDC. Just a few turns of the crank got the next cylinder's cam lobes to 11 and 2 o'clock. I rotated it 180 anyway for each cylinder after 1 though. I went clockwise too according to the helms (?) manual I found on robrobinette's site. Does rotational direction matter?
03-30-2018, 12:11 PM
#16
Thread Starter
03-30-2018, 12:13 PM
#17
Thread Starter
03-30-2018, 01:41 PM
#18
Moderator
Properly adjusted valves on an S2000 will be whisper quiet.
The tightest valve I have ever found on an AP1 is .009. I’m quite certain you set them way too loose.
The tightest valve I have ever found on an AP1 is .009. I’m quite certain you set them way too loose.
03-30-2018, 05:32 PM
#19
I need to get out and do my S's valve adjustment, been 5 years, but only around 15k.
On the F20/22 the chain tensioner keeps enough tension when rotating ccw, however Honda's K series, by design de-tension the chain when rotating backwards, the tensioner has no ratchet to maintain tension. If the car you're working on has dubious maintenance history or extreme mileage, there's a chance that the chain can jump on restart.
J V6 has a strong (usually) hydraulic tensioner that keeps the belt tight all the time, their other I4s will usually keep tight when rotating backwards.
I've also found other manufacturers, Ford being the worst, their Ecoboost 3.5, if it's rotated backwards at all, you're just about guaranteed to have a valve destroying incident. Stupid.
On the F20/22 the chain tensioner keeps enough tension when rotating ccw, however Honda's K series, by design de-tension the chain when rotating backwards, the tensioner has no ratchet to maintain tension. If the car you're working on has dubious maintenance history or extreme mileage, there's a chance that the chain can jump on restart.
J V6 has a strong (usually) hydraulic tensioner that keeps the belt tight all the time, their other I4s will usually keep tight when rotating backwards.
I've also found other manufacturers, Ford being the worst, their Ecoboost 3.5, if it's rotated backwards at all, you're just about guaranteed to have a valve destroying incident. Stupid.
03-31-2018, 05:13 AM
#20
Thread Starter
I redid the job today guys. Correct gauges - 0.008 in 0.010 ex. Its not as loud as it was before and all is well on the road too. Returns to idle and idles quite nicely too 
Thanks for the replies.
Thanks for the replies.