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compression check procedure ( update ) [message #320646] Tue, 18 July 2017 10:26 Go to previous message
joewilly is currently offline  joewilly   United States
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Registered: April 2016
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results of my compression check (hot)
#1-154 #2-146 #3-154 #4-152 #5-154 #6-146 #7-160 #8-160

overall seems good to me.
any ideas on why #2 & 6 are a little low compared to the rest.

installed new plugs ( E 3.52 ) the old plugs-Bosch platinum looked good but were gaped .080



Hello again,
I built a set of the 2 x 4 jack stands ( thanks Steve )and they work great, got the cv boot changed , front end greased, oil changed , and now going to change plugs and thought I'd do a compression check to get a baseline for the motor. I've never done one before so what's the best procedure, hot, warm, cold,manual says to disconnect the HEI,do I just remove wire clips on side of dist? I don't want to do something stupid and screw up the HEI
what should I expect for results on a 403 with 69,000 mi
thanks again for all your help


Joe Williams 1978 Royale rear twin

[Updated on: Fri, 21 July 2017 10:19]

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