compression tester

[rsh4364]

Just ordered a kent moore J-26999-30 adapter for compression test on 6.2,any input on a comp. gauge that's compatible with this adaptor,if it tests good going turbo.

 

[acesneights1]

Post a pic of the adaptor.

 

[rsh4364]

Have not received yet,if you google part # you might get pict.

 

[Warthog]

Looks like you may need the J26999 compression gauge

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[rsh4364]

Thanks for they input,I kinda thought it would be expensive.When I get it Ill take to NAPA to see if there is a cheaper alternative.

 

[rsh4364]

Looks like you may need the J26999 compression gauge

View attachment 513634.

Yeah looks just like that,received today.Its still on the original placard.Also came with a quick connect fitting that goes on adaptor and has female threads for gauge to screw into.Will look at other gauges to see if compatable.

 

[richingalveston]

That looks the same as the one I have in my testing kit.
rsh4364 - the tester is in the mail, it is USPS, for Saturday delivery.

 

[rsh4364]

Awesome Rich,thanks a lot.

 

[donalloy1]

How well does it work? Need to check mine also! Found NOS J26999 compression gauge for under 30 you know where.

 

[rsh4364]

That looks the same as the one I have in my testing kit.
rsh4364 - the tester is in the mail, it is USPS, for Saturday delivery.

Yep arrived today,Thanks Rich..

 

[rsh4364]

Yep arrived today,Thanks Rich..

After the weekend I had, sadly didn't get comp. test done,if its a problem to keep til next weekend let me know

 

[richingalveston]

take your time, it would just be sitting on a shelf if it were here.

 

[rsh4364]

take your time, it would just be sitting on a shelf if it were here.

Got the test done a few weekends ago.Great to know I have very healthy motor! 395-405 per cylinder,and I installed oil pressure gauge and it carries 50-55 lbs.warm at idle.Used your gauge and adaptor and my set up also,both read the same.

 

[richingalveston]

Make sure any other ss members around you that you know gets a chance to use it if they want before it is sent back.

 

[TexAndy]

You could check compression quick and dirty with a digital oscilliscope. One that logs and graphs current draw over time.

Saw that on a car program. The ammeter function of the o-scope measures current of the starter motor. Just disconnect the fuel and crank the starter motor for a few seconds. As the compression builds in the cylinder, the starter motor draws more current.

I don't think it would give you an easy indication of which cylinder was the culprit, but it would be a quick way to determine if compression was an issue at all.