Help confirm auto diagnoses for a friend

Maintenance/Repairs
21

To figure out if the head gasket is breached is fairly easy. I’m sure You can fabricate one of these:

20190730_171304
20190730_1713042560×1536 1.78 MB

If need be, insert a pipe between the “plug” and nipple.
Remove plugs, turn engine to ignition on cyl. 1, lock engine, fit “plug”, add air.
Remove oil fill cap, airfilter cover, release any pressure in cooling system, but put cap back on.
If coolant hoses gets hard, headgasket bad.
Noise in the intake or exhaust pipe, bad valves (you can check with a lit cigarette (or, as I prefer, a good cigar) in the exhaust too if in doubt)
Notice airflow out the crank case (removed oil fill cap). Notice to compare with the other cyl.
Rinse and repeat on all cyl.
Easy-peasy.

22

Thanks. Pretty neat device and that advice sounds like it comes from a few years of experience.

23

Hmm, not that many, just some 40-odd years, At least that procedure gives me an excuse to smoke a good cigar. Hon, he’s paying me to smoke that cigar.
:wink:

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