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I put a running engine in my M817 last week and got it running yesterday. Took it for a spin think the cooling system is in need of a T stat or something. But what Im wondering from you guys is A power control box seems to be bad still (tried the one off the donner truck and it too shut off all...

Hi all, So its looking like the trust 817 has covid and cracked a liner. The debate Im having is this. Currently I have the heads off and all the parts to put them back on but dont have a cylinder kit. Do I order a cylinder kit and go that route? Or do I call it quits on the 800, I have a...

Ok we got into it today. Coolant in cylinders 3,4,5 and 6. Looks like the #2 cylinder has a leaky injector. but no obviously bad head gasket? coolant looked oil free but gallons of coolant in the oil pan. Ideas? warped head? are these wet liners?

Update. Well Something bad has happened. Next morning put a glove on and went to start. Got about 1/3 a revolution before the engine locked up. Pulled the oil pan drain and about 2 gallons of coolant came out then oil. No oil apparent in the coolant... so i'm going with head gasket or worse...

Hey guys just looking for some clarification, I am getting conflicting stories from various vendors. Do the head bolts on a NHC 250 need to be replaced after I pull the heads? or can they be reused? thanks Lucas

Hey everyone, just decided now that we are shut down to pull the 817 in to the shop today and start doing fluid change/filters. I haven’t started it since January but fired right up, warmed up for 5 min and then drove it it 1500ft up the road to in-front of the shop. At that point I shut it down...