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Want to connect the Mityvac MV 5535 to my Yangdong Y485T.It appears that I'm trying to couple a 1/4″ NPT nipple (the glow plug adapter) to a 7.5 mm female coupler (the Mityvac).Does the Y485T glow plug cross-reference to the plug of another make of tractor?Mityvac lists tractors that it can adapt to, but Jinma/Yangdong are not on their list.Any advice?
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It appears that I'm trying to couple a 1/4″ NPT nipple (the glow plug adapter) to a 7.5 mm female coupler (the Mityvac).I have fabricated compression tester adapters before from old injectors and glow plugs. Be sure to use high pressure fittings. Mityvac uses a “mechanics” type quick coupler. You can get these at Home Depot, NAPA, auto parts stores, etc.
Does the Y485T glow plug cross-reference to the plug of another make of tractor?Mityvac lists tractors that it can adapt to, but Jinma/Yangdong are not on their list. Any advice?Chances are that one of their adapters DOES fit your engine, but Yangdong is not exactly a household name in the US. You will have to compare dimensions, or just make your own. Mityvac lists a ton of adapters separately.Account deleted.
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Thank you, Bob, for the useful advice and photo.
We used the fuel injector port to attach the compression tester. Got the following results: Cyl 1 (nearest radiator) 459 psi
Cyl 4 (nearest bulk head) 378, 330, 319 psi
Cyl 4 was filling with water from the radiator; drained the radiator before testing. Aborted testing after finding the water.
Ordering a head gasket, head bolts, injector washers, etc. Plan to pull the head, and have it tested and milled at a machine shop.
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