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Author Topic: Valve Order  (Read 471 times)
Ken's 57
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« on: February 11, 2018, 12:25:36 PM »
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Can someone please confirm I've got the correct order of the valves beginning at the front cylinder?

My observations are:
  1       2      3       4       5      6
Ex I,  I Ex  Ex I,  I Ex,  Ex I,  I Ex

Sorry, I know this is basic stuff but..... I need to know I'm right.

Also, does anyone know what cleans off Permatex #2 non-hardening gasket sealer? I've tried petrol and iso propyl alcohol to remove from the rocker cover but no luck.

Cheers, Ken  Smiley
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Ken's 57
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« Reply #1 on: February 11, 2018, 05:30:08 PM »
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Sorry....I wasn't real clear in my first post. Doing the tappets and just want to be sure I know which is exhaust and which is inlet.  Smiley
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mcl1959
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« Reply #2 on: February 11, 2018, 08:43:22 PM »
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Yep you are right. All you have to do is picture the manifold up against the side of the head and you can see the pattern.

Ken
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ardiesse
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« Reply #3 on: February 11, 2018, 09:00:59 PM »
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For Permatex No. 2, I'd try turps, and if that doesn't work, metho.

Rob
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Remember: if your Holden's not leaking oil, it doesn't have any.
Ken's 57
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« Reply #4 on: February 12, 2018, 02:43:51 PM »
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Thank you.

Just out of interest, would tappet clearance be smaller or larger when the engine is cold?
I always assumed the clearance would be greater when cold but was told recently the gap widens as the engine heats up.
Cheers, Ken  Huh
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hsv-001
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« Reply #5 on: February 13, 2018, 09:36:21 AM »
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I have never really thought about it ,but I always use less clearance than spec as I believe oils have improved . I guess engine block would expand but so would lifters ,push rods ,rockers and towers so I don't think there would be much in it . I would gap at around 6 & 8 and listen for rattles and or exhaust popping and any rough idle .
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Ken's 57
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« Reply #6 on: February 13, 2018, 09:46:08 AM »
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Thanks. Will have a go at it today.
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Ken's 57
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« Reply #7 on: February 14, 2018, 07:48:55 PM »
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Did the tappets on the weekend. Can't believe the improvement. Smoother idle and better engine performance. I have never bothered too much with them before but will make this a regular part of the maintenance from now on. Gave up trying to adjust them with the engine running but did take a preliminary reading as it idled. The engine was hot and I simply switched off to adjust them one at a time, making sure I kept it at operating temperature. Had a mate to help which made it easier but it took quite a few goes to get some of them right. And as I was told, the clearance increases as the engine heats up. On average about 5 thou.
Cheers, Ken Wink
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« Reply #8 on: February 15, 2018, 08:53:38 AM »
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Cool to know that I have been correct to gap them closer than spec. all these years . Thanks.
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