Looking for suggestions

[WDShaffer]

Compression ratio is reference to the volume of the cylinder with piston at bottom of the stroke as compared to the volume of the cylinder with piston at the top of the stroke. This is part of the physical design of the engine. At ideal, brand new condition, and probably at mean sea level, this would also result in the imperical data TJ and other refer to which includes a compressed pressure within the cylinder of 125 psi. With age, valves, valve stem seals, and piston ring seals begin to leak. So depending on the life your engine has lead, this maximum cylinder pressure will be lower.

As stated, as long as the pressure reading between all cylinders is within a reasonable margin and none are below 100 psi, you will probably have a serviceable engine with many years left in it.

You do not mention if the engine is equipped with a "new" dry-style air cleaner, or the original "oil bath" air cleaner. Be sure to use the newer more common replaceable air filter. The original oil bath is great for nostalgia, but can shorten engine life.

[Ed Snyder]

Originally Posted by WDShaffer

You do not mention if the engine is equipped with a "new" dry-style air cleaner, or the original "oil bath" air cleaner. Be sure to use the newer more common replaceable air filter. The original oil bath is great for nostalgia, but can shorten engine life.

I'm glad you addressed the air filter issue, WD. I've addressed it before too, but it's been several years ago now. I like how you said the oil bath is great for "nostalgia" but can shorten engine life because that is definitely true. You just can't beat a paper element for efficiency -- they catch over 99% of contaminants vs. about 95% for a properly maintained oil bath unit. And much lower than 95% if not well maintained. And they're messy to maintain compared to a paper element which you merely throw away. There are lots of sites on the internet that compare the two types. Here's one of them:

https://www.hastingsmfg.com/ServiceT...ke_filters.htm

So if you want to get the most miles possible out of your V6, get rid of the oil bath air filter and treat your engine to a new paper element air filter.

[Jmclendon]

I figured as much time as I've spent blathering on about it that it wouldn't hurt to upload a picture of where the magic happens lol.

[WDShaffer]

The engine bay looks very clean indeed. The blue is popular in California and does look good. I'm thinking of a more smokey blue for mine.

[Jmclendon]

Originally Posted by WDShaffer

The engine bay looks very clean indeed. The blue is popular in California and does look good. I'm thinking of a more smokey blue for mine.

Blue is how it came.... But, someday I'm going to go for June Bug Green I reckon.

Have you ever seen Longmire? Something close to the colour of Henry's truck.

Sent from my E6653 using Tapatalk

[TJ's GMC]

Bit late on the picture but here you go. If you take touch the center lead to the lead on the right with the purple wire it will kick the starter on. Be aware you'll get some sparkage, but that's normal so don't be worried, once you get a good connection crank the motor until you get to the peak compression on the gauge. Do that with all 6 and be sure to record your findings.

[Jmclendon]

Thanks for the info. I'll see how I go.