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| Valve Lash Adjustment Question https://slantsix.org/forum/viewtopic.php?t=24103 |
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| Author: | caveman [ Wed Jul 18, 2007 8:42 am ] |
| Post subject: | Valve Lash Adjustment Question |
I set my valve lash yesterday after changing over to the super six, and noticed the two intake valves side by side have now bottomed out and can be tightened no further. They're set at about .012 which seems fine for now but what does this mean for the future? Also - any insight to what the heat riser in the exhaust manifold actually does? |
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| Author: | Pierre [ Wed Jul 18, 2007 10:23 am ] |
| Post subject: | |
Take the pushrods out and make sure they aren't bent. Or perhaps they aren't closing all the way, guide and/or seat issues? Wouldn't hurt to do a compression test on those 2 holes. |
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| Author: | Doc [ Wed Jul 18, 2007 11:41 am ] |
| Post subject: | |
How many miles are on this engine? DD |
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| Author: | SlantSixDan [ Wed Jul 18, 2007 12:38 pm ] |
| Post subject: | |
The manifold heat control valve directs exhaust to the underside of the intake manifold floor so that liquid fuel that tends to pool on the manifold floor with a cold engine, at low engine speeds, and under hard acceleration, will be vapourised before it is drawn into the engine. |
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| Author: | caveman [ Mon Jul 23, 2007 11:02 pm ] |
| Post subject: | |
Thanks Dan, Doc - The motor was rebuilt about 10,000 miles ago. |
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| Author: | Doc [ Tue Jul 24, 2007 3:11 pm ] |
| Post subject: | |
Uhmmm... I wonder where you lost that travel, reground cam & lifters? Seeing that the engine is in good overall condition, you may want to remove the adjuster screws and grind those rocker arm surfaces a little thinner / flatter. The other option is to order some longer ball screws or push rods. DD |
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