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Checking compression with Rocker arms removed
https://slantsix.org/forum/viewtopic.php?t=24091
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Author:  FreeFish [ Tue Jul 17, 2007 8:14 am ]
Post subject:  Checking compression with Rocker arms removed

I was going to set my valve lash until I found that ALL of the rocker arms were plugged and one pushrod was bent. I have the rockers soaking, but I'd like to do a compression check while I'm waiting for the gunk in the oil passages to loosen up. Can I do a compression check with the rockers out? I'm thinking without the valves opening it won't be worthwhile, but thought I'd ask anyway.

Thanks,

John

Author:  Doc [ Tue Jul 17, 2007 9:19 am ]
Post subject: 

Yes, the valves need to open and close to get compression reedings.
BTW,
On your clogged rocker arms, you should find yourself a good used (unclogged) rocker arm assembly to use. It is unlikely you will be successful in getting all 12 arms unclogged. (and you can spend hours trying)
DD

Author:  FreeFish [ Tue Jul 17, 2007 11:04 am ]
Post subject: 

I'll keep my eyes open for a good set. I'm not in a hurry, so its worth trying to save them. I need to run up on a used crock pot to turn into a hot tank :wink: I appreciate the help.

John

Author:  Doc [ Tue Jul 17, 2007 12:33 pm ]
Post subject: 

I have some extra good used RA assemblies, drop me a PM if you need one.
DD

Author:  volaredon [ Tue Jul 17, 2007 4:52 pm ]
Post subject: 

somone had an NOS set on Ebay last week, the price didnt seem too bad. If youre not in a hurry it would be worth watching there.

Author:  dakight [ Tue Jul 17, 2007 5:46 pm ]
Post subject: 

Quote:
somone had an NOS set on Ebay last week, the price didnt seem too bad. If youre not in a hurry it would be worth watching there.
Those show up on Ebay with some regularity. I've been tempted myself but I think I have everything I need.

Author:  Dusty Desks [ Tue Jul 17, 2007 8:39 pm ]
Post subject: 

Thrift shops, Goodwill stores, etc. usually have plenty of used crock pots for sale for a couple of dollars or so.

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