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#42082 - Mon Aug 18 2003 03:22 AM compresion questions  
jeremiah boatright  Offline
Member
Joined: Aug 2003
Posts: 13
california
I have a question about the compresion in my 1953 216 what should it be ? the compresion in it is 1)100 psi 2)115 psi 3)110 psi 4)100 psi wont hold 5)100 psi wont hold 6)120 psi wont hold . if you could help me out I would hightly appreicate it thanks



#42083 - Mon Aug 18 2003 03:58 AM Re: compresion questions  
squeeze  Offline
Master Gabster
Joined: Jul 2001
Posts: 5,814
Vancouver Island
sounds like trouble IMO - should be very close to same on all 6 for starters, in which case even 100 would be workable, 110 or 115 prolly better, 120 might be like new - 'not holding' means fail leakdown? sounds like time for the tear down eek

Bill


"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot

#42084 - Mon Aug 18 2003 04:51 AM Re: compresion questions  
Tony M  Offline
Member
Joined: Dec 2001
Posts: 6,017
Calfornia, the land of spotles...
I dunno why, sounds to me like it could be a pretty good running old engine. It depends on whether it is using any oil and where. Everything over 100 sounds good. It depends on what you are going to do with it I guess.


54 3100 with 235
62 flatbed dump C60 with 261

#42085 - Mon Aug 18 2003 05:07 AM Re: compresion questions  
jeremiah boatright  Offline
Member
Joined: Aug 2003
Posts: 13
california
wink


#42086 - Mon Aug 18 2003 05:10 AM Re: compresion questions  
J.H.Proffit  Offline
Member
Joined: Aug 2000
Posts: 2,268
gone
Doesn't sound wonderful but not really bad
Did you do this warm?
Did you open the carb fully?
Did you run the same number of strokes?
Did you adjust the valves first?
If the answer to any of the above is no Please start over....and then report the results


#42087 - Mon Aug 18 2003 05:21 AM Re: compresion questions  
jeremiah boatright  Offline
Member
Joined: Aug 2003
Posts: 13
california
i didnt think about that i just ran it up till it stoped.


#42088 - Mon Aug 18 2003 05:37 AM Re: compresion questions  
Dusty  Offline
Shop Shark
Joined: Feb 2001
Posts: 1,635
Canterbury , NewZealand
OK ,, so why did it stop ?

Run out of fuel ... run out of spark ... broke something ... ??

Or are you still looking .


#42089 - Mon Aug 18 2003 05:45 AM Re: compresion questions  
J.H.Proffit  Offline
Member
Joined: Aug 2000
Posts: 2,268
gone
Hi Dusty

I think he means til the gauge stopped

Boatright What about the rest of the questions?


#42090 - Mon Aug 18 2003 06:13 AM Re: compresion questions  
Oly  Offline
Cruising in the Passing Lane
Joined: Mar 2001
Posts: 2,859
Camas Valley, Oregon, USA
Jeremiah, Are you giving it a compression check or a leakdown check? These two are done differently. Do as Profit says and check compression- with a compression guage. Then you can do a leakdown test. If you need help with the proper procedures for either one just ask and these guys will walk you thru both checks.

Welcome to The Stovebolt Page (and make sure you stop by the ever so active Lounge and say hello)


Oly in Oregon

Rest in Peace

1945 GMC COE Victory Truck
1953 Willys CJ3B
1955 Chevy 1st series 3/4-ton
1958 WIFE Last series

Never say "Whoa" in a mud hole

#42091 - Mon Aug 18 2003 06:25 AM Re: compresion questions  
Mechainiac  Offline
Member
Joined: Feb 2001
Posts: 7,667
Confusion Hill Road, Third peb...
If the pressure will not hold on the tester guage, I think you may have something wrong with your tester. Sometimes things can make the needle-valve in the guage or fitting to the guage to stick a little in the open position.
Do the checks and adjustments as needed like Jim Proffit mentioned.


There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
-
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!

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