Re: [diesel_mercedes] Re: Detroit engine seizure OK lets talk

 

I've experienced the situation where freeze plugs have fallen out from  an engine. Years ago I worked on a line crew and the freeze plug on the IH motor started to leak; we'd have to add water as we used the truck. Eventually it leaked faster than we could add water and the truck would overheat if we didn't shut it down. The cause of the failure was operation in -30F weather; the engine heated unevenly and the plug heated more slowly than the block. I doubt the plug was that cold when it was originally installed. --- On Sat, 3/12/11, diyernh <diyernh@comcast.net> wrote: From: diyernh <diyernh@comcast.net> Subject: Re: [diesel_mercedes] Re: Detroit engine seizure OK lets talk To: diesel_mercedes@yahoogroups.com Date: Saturday, March 12, 2011, 4:34 PM the real purpose of freeze plugs is for casting the engine.  The hollow passages inside the engine need to be molded with sand.  The connections of the sand mold are through the freeze plugs.  they bore out the holes and push in light sheetmetal plugs in the holes.  There are usually one on the block, below the heads, between each cylinder.  some may be on the front/back of the engine also. They call these freeze plugs, thinking that if water freezes in the engine, it will push out the sheet metal plugs, avoiding damage to the engine casting.  They may work that way sometimes, but usually the engine is destroyed.  Don't trust them. Every cast engine will have "freeze" plugs. Carl On 3/12/2011 12:11 PM, c24052000 wrote:   doug, What is the purpose of the freeze plug? where is it located? Do I have one on my 300sd? Thanks Chuck

__._,_.___

Reply to sender | Reply to group | Reply via web post | Start a New Topic

Messages in this topic (7)

Recent Activity:

• New Members 1
• New Photos 1

Visit Your Group

Switch to: Text-Only, Daily Digest • Unsubscribe • Terms of Use

.

__,_._,___