12HT Valve Clearance
Submitted: Wednesday, Dec 05, 2007 at 21:03
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WA Joe
Hi Everyone,
Could some kind person tell me the valve clearance for a 12HT.
Hot or cold.
Regards,
Joe.
Reply By: Dave B (NSW) - Wednesday, Dec 05, 2007 at 22:06
Wednesday, Dec 05, 2007 at 22:06
Hot Inlet 20mm Exhaust 36mm
Inlet .008 in. Exhaust .014 in.
Dave
AnswerID:
275201
Follow Up By: V8 Troopie - Wednesday, Dec 05, 2007 at 22:42
Wednesday, Dec 05, 2007 at 22:42
Dave, you omitted the very important decimal point before the mm dimensions. Actually, it is better to put a zero in front as
well:
Intake 0.20mm; Exhaust 0.36mm
I gather you are an "inch" man LOL
Klaus
FollowupID:
538898
Follow Up By: Dave B (NSW) - Wednesday, Dec 05, 2007 at 22:47
Wednesday, Dec 05, 2007 at 22:47
I think they would clatter and bang a bit at 20 and 36mm wouldn't they Klaus?
Thanks for picking me up on that.
I hope Joe hasn't raced out and set them at 20 and 36 already :<))
Dave
FollowupID:
538901
Follow Up By: furph - Thursday, Dec 06, 2007 at 07:37
Thursday, Dec 06, 2007 at 07:37
Also worthwhile inspecting
the tip of the rocker arms.
At about 200k. my old 2h had about a 0.010" wear recess where the rocker arm contacts the valve stem.
This masks the measured setting, the feeler gauge not fitting the circular recess.
Easy cure by dismantling the rocker assembly and having the rocker tips reground. The hardness depth is usually deeper than the wear.
furph
FollowupID:
538934
Follow Up By: WA Joe - Thursday, Dec 06, 2007 at 08:25
Thursday, Dec 06, 2007 at 08:25
Thank you gentlemen. will check that out Furph.
FollowupID:
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