Re: [Chrysler300] Compression pressure on 300H

On Mar 17, 2015, at 3:23 PM, christopher <thelastbestgenius@xxxxxxxxxxx> wrote:

My 1963 "MOTOR AUTO REPAIR MANUAL" shows in tune up section re Imperial Chrysler etc section, that it should be 165lbs cranking pressure for 300H,

Christopher in Australia - early autumn here, great nice sunny days, perfect for 300ly driving/enjoying - but gas price 130c a litre for 90- octane, 95-98 rating is 20c a litre dearer, but at least it non ethanol

CC: Chrysler300@xxxxxxxxxxxxxxx
To: jmaiani@xxxxxxxxxxx
From: Chrysler300-noreply@xxxxxxxxxxxxxxx
Date: Tue, 17 Mar 2015 15:09:02 -0700
Subject: Re: [Chrysler300] Compression pressure on 300H

Jim,

Not necessarily.

I am about to go through an objective diagnostic of what is wrong with my engine.

One data point I don't have is what compression an H engine in good condition will have.

I do not suspect low compression due to wear , but want to compare it to someone who is satisfied with how their stock H is running. This engine has ca. 40,000 miles on it SMOH.

My theory is if my compression compares favoarbly with another car with a satisfied owner, I'll focus elsewhere,

Numbers on your old engine will help if they indicate condition an ou could comment, e.g., 120-120-110-90 eg, hard to start, no power, ran like crap etc.

As a matter of general interest, after the last round of discussions regarding how awful our gasoline is etc., I siphoned out about 5 gallons of year old+ gasoline and put 2 gallons of fresh gasoline. Made discernible difference.

Mike Moore

300H

On Mar 17, 2015, at 1:04 PM, Jim Maiani <jmaiani@xxxxxxxxxxx> wrote:

I can dig out the numbers on mine, but the 413 is original with 126,000 miles on it, and never out of car. They were taken about 1000 miles ago. Do you want numbers on my old engine?

Jim Maiani

Houghton Lake, MI

From: mailto:Chrysler300-noreply@xxxxxxxxxxxxxxx

Sent: Tuesday, March 17, 2015 3:51 PM

To: Mike Moore

Cc: Chrysler300@xxxxxxxxxxxxxxx

Subject: [Chrysler300] Compression pressure on 300H

Does anyone with a good running 300H know what actual compression pressure they measure when they do a compression test?
(all plugs out)

Thanks,
Mike Moore
300H

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Posted by: Michael Moore <mmoore8425@xxxxxxx>

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