Re: WARNING, WARNING, WARNING!!! Reply #75 – March 19, 2018, 12:48:45 am Quote from: Old phart phred – March 18, 2018, 08:07:27 pmIf the whole freeze plug came out it was probably from an overpressure event, maybe caused by some other failure. My 71 Ford pickup has the originals. Could have been incorrectly installed at the factory, doubtful though.I wonder how cold it got while the coach was in Indiana? The main thing a freeze plug is for it to pop out if it freezes isn't it? Quote Selected 1 Likes
Re: WARNING, WARNING, WARNING!!! Reply #76 – March 19, 2018, 01:26:00 am These so call freeze plug were not designed to save the block but it for casing of the block, comment below is borrowed from the internet."The term Freeze plug is slang, the name of the press in block plugs is actually core plug. It is mistakenly thought that the purpose of these plugs is to be pushed out and save the block from cracking if the engine has water in it and it happens to freeze. This is nothing more than an urban legend or an old wives tale. The purpose of the plugs is to fill the holes that were made during the casting process, so the foundry could remove the core sand from the coolant passages. Saving the block from cracking in case of a freeze was never the manufacturer's intent for these plugs" Quote Selected 5 Likes
Re: WARNING, WARNING, WARNING!!! Reply #77 – March 19, 2018, 02:52:17 am Quote from: Willy White – March 19, 2018, 01:26:00 amThese so call freeze plug were not designed to save the block but it for casing of the block, comment below is borrowed from the internet."The term Freeze plug is slang, the name of the press in block plugs is actually core plug. It is mistakenly thought that the purpose of these plugs is to be pushed out and save the block from cracking if the engine has water in it and it happens to freeze. This is nothing more than an urban legend or an old wives tale. The purpose of the plugs is to fill the holes that were made during the casting process, so the foundry could remove the core sand from the coolant passages. Saving the block from cracking in case of a freeze was never the manufacturer's intent for these plugs"You beat me to it Willie! Quote Selected
Re: WARNING, WARNING, WARNING!!! Reply #78 – March 19, 2018, 10:32:38 am Frequently, the block is then tapped with the core plug screwed in. They usually have a big recessed hex plug so they can be removed. Probably a buck more expensive but a nicer way of doing it.Pierce Quote Selected
Re: WARNING, WARNING, WARNING!!! Reply #79 – March 19, 2018, 10:40:21 am Quote from: Pierce & Gaylie Stewart – March 19, 2018, 10:32:38 amFrequently, the block is then tapped with the core plug screwed in. They usually have a big recessed hex plug so they can be removed. Probably a buck more expensive but a nicer way of doing it.PierceHaven't seen that one, corrosion would make it a PITA to deal with trying to get a good seal. I don't have taps that big. Quote Selected
Re: WARNING, WARNING, WARNING!!! Reply #80 – March 19, 2018, 10:52:48 am They have a gasket on the back side. Here is a 38mm plug. Takes a 22mm socket to remove. Mercedes makes a block heater to thread in the place of the plug. I used to remove the plugs before the block went into the hot tank. Tough to break loose.I think Detroits and CATs use threaded core plugs. 18mm if my memory is correct.Pierce Quote Selected
Re: WARNING, WARNING, WARNING!!! Reply #81 – March 19, 2018, 12:41:05 pm And if you are really interested (or AR) and have the engine out, here is what some do to install threaded core plugs. Pierce Quote Selected
Re: WARNING, WARNING, WARNING!!! Reply #82 – March 19, 2018, 03:15:33 pm Back in the day, I had a Ford Boss 302 engine that the freeze plugs were all tapped and fitted with screw in plugs.Not made to take out ,but to NOT fall out. Quote Selected 1 Likes
Re: WARNING, WARNING, WARNING!!! Reply #83 – March 19, 2018, 08:20:21 pm Quote from: AC7880 – March 18, 2018, 08:46:23 pmBest to replace the air cleaner after that. I learned that lesson on my previous coach when a hydraulic line blew.Already done but not right away. A good message for those dealing with this right away. My old filter was in good shape. Always make sure to get a decent filter that has the metal wiring on the inside lest you end up like Technomadia getting a new engine rebuild because of a failed filter running in the wrong direction. Quote Selected 1 Likes
Re: WARNING, WARNING, WARNING!!! Reply #84 – May 04, 2018, 09:53:54 pm Hey Rick, how's the motor coming along? Quote Selected
Re: WARNING, WARNING, WARNING!!! Reply #85 – May 06, 2018, 03:14:41 pm Well if everything happens right, the coach should be up and running tomorrow, and by Wednesday I will be driving over to Ft Lauderdale to begin the wrap. I will keep you guys posted. Quote Selected 4 Likes
Re: WARNING, WARNING, WARNING!!! Reply #86 – May 06, 2018, 03:22:34 pm Was there ever any determination as to what destroyed the engine? Quote Selected 2 Likes
Re: WARNING, WARNING, WARNING!!! Reply #87 – May 08, 2018, 12:12:27 pm No probably will never know. When I send the core back, they will just put in in back with all of the others that they have until they need it. I had to pay a $2500 core charge of which I would have gotten back , had the block not cracked, so I will only get get back half now. Quote Selected
Re: WARNING, WARNING, WARNING!!! Reply #88 – May 08, 2018, 12:22:20 pm Is there a 'break-in' (no pun intended) procedure for that engine? That engine should outlive most of us! Quote Selected
Topic: WARNING, WARNING, WARNING!!!