Valve Clearances
Posted: Wed Jun 10, 2009 9:22 pm
Just wondering if anyone can tell me inlet and exhaust clearances. Thanks any help would be appreciated.
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Posted: Wed Jun 10, 2009 10:41 pm
Maybe some info on vehicle/engine/model/year may help...
Posted: Thu Jun 11, 2009 12:57 pm
Yes That prob would be a good idea. A GQ TD42 1994. Thanks
Posted: Thu Jun 11, 2009 6:50 pm
11 thou inlet. 15 thou exhaust
Posted: Thu Jun 11, 2009 6:59 pm
Is that hot or cold valve clearance, looking to do this very soon also.
Cheers, Dano.
Cheers, Dano.
Posted: Thu Jun 11, 2009 8:57 pm
Awesome mate thanks heaps cheers
Posted: Thu Jun 11, 2009 9:00 pm
hot , get it red hot first then do them as quickly as possible
Posted: Thu Jun 11, 2009 10:17 pm
do them cold.
Posted: Thu Jun 11, 2009 10:25 pm
What spec??drifter** * wrote:do them cold.
I had a spec years ago from nissan but lost it?
Posted: Fri Jun 12, 2009 7:02 am
im interested as to the comment on doing them cold.the manual does give a cold spec iirc.. everyone in the dealer i am at does them hot , do you do them cold at home because of the time taken to do them if you have not done about 400,000 of them. each 4.2 gets it every 20,000 as part of service.
Posted: Fri Jun 12, 2009 7:03 am
ill post it up later on today when i get to work from the y60 manual. 
strait from the bible
strait from the biblePosted: Fri Jun 12, 2009 9:50 am
sorry, my mistake I was thinking of shims, not adjustable tappets. your right do them hot.
Posted: Fri Jun 12, 2009 11:03 am
??Tomo_89 wrote:11 thou inlet. 15 thou exhaust
ifaik is 14 thou for both
prehaps a gq td42 is different, however i doubt it
edit: quick look in the gu genuine manual page em-176 states 0.35mm or 14thou, done hot. as i said i highly doubt thats going to be different for a gq td42
Posted: Fri Jun 12, 2009 1:21 pm
page em-95 in the genuine nissan gq manual states 0.35mm aswell
so no its not different at all
so no its not different at all
Posted: Fri Jun 12, 2009 8:27 pm
All TD42 engines are 13 thou hot, No nissan engine likes cold tappet settings.
Posted: Fri Jun 12, 2009 9:01 pm
If you run them at 12thou it shuts them up and gives a little performance gain.
Posted: Fri Jun 12, 2009 9:05 pm
You'll find that if you have adjusted the valve lash to 13 thou and they are still noisy your valve stems have worn the rockers and they will need to be built up and machined. 12 thou isn't recommended as factory have set them at 13 thou for a good reason.
Posted: Sat Jun 13, 2009 3:12 am
Tappered feeler gauge also helps to set them right, especially if you have divits on the rockers.
Posted: Sat Jun 13, 2009 10:52 am
Thanks heaps. i was hoping to do them cold as i have tapper cover off already but doing them hot is not a problem anyway. I Appreciate everyone advice Thanks