Re: [Chrysler300] compression

["Laurence G. Johnson" <laurence_g_johnson@xxxx>]

When I was just out of highschool, one of my friends dad had a '58 Chrysler 
with a single four barrel 392 hemi and it would crank over 200psi so your 
110 seems low. The "hotter" cam in the dual four barrel motors wasn't that 
much "hotter" to account for an 90psi difference. Why not try a different 
gage? Check the gage your using to see if the needle may be pinned against 
the zero stop causing it to read low. If the engine runs OK and has good 
power and mileage there probably isn't anything wrong. A 10psi increase in 
cranking compression with oil is normal. Good luck. LGJ






> From: "Park Waldrop" <pwald@xxxx>
> To: "Chrysler 300 Group" <Chrysler300@xxxxxxxxxxxxxxx>
> Subject: [Chrysler300] compression
> Date: Fri, 15 Nov 2002 12:59:33 -0500
>
> What should one expect the compression to be on a moderately worn 'C' 
> engine (std 375 hp version) at cranking speed with all plugs out? Just 
> checked mine on the recently acquired coupe, and am a bit puzzled at the 
> low readings (highest of 110). I expect valve overlap will reduce it a bit 
> compared to a milder cammed engine, but am still skeptical of these 
> readings.
>
> Park Waldrop
> Atlanta
>
> [Non-text portions of this message have been removed]


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