Re: [Chrysler300] G Freeze Plugs

[Ray Jones <hurst300@xxxxxxxxxxx>]

The Brass plugs are made for Marine use. Any well stocked auto parts store
will have them or can get them quickly. They are easier to work with and
"set" better as they are softer than steel, they seem to seal them selves
into the roughness of the machined hole.
I was tought to use only brass 50 years ago and have never had one come out.
Did I write "50 years ago"? Who'd a thunk?
Epoxying them is good insurance.

Regards and hope to see All Y'all in PA, Ray
------------
Ray Jones, Jones Ridge, in the Ouachita Mtns near Mena, Western Arkansas

> From: "Bob Jasinski" <rpjasin@xxxxxxxxxxx>
> Date: Sat, 1 May 2004 10:39:07 -0700
> To: "Richard Osborne" <richard@xxxxxxxxxxxx>, <chrysler300@xxxxxxxxxxxxxxx>
> Subject: RE: [Chrysler300] G Freeze Plugs
> 
> Richard,
> 
> This has come up before with the flat, domed shaped plugs, and is a somewhat
> common problem.  I have had this type of expansion plug, installed even by
> professionals, pop out shortly after the first engine start after a rebuild.
> My solution may be viewed as a bit of extreme by some, but here is what I
> do.
> 
> First off, find a replacement that is brass, not steel, that way it won't
> rust out after time.  Clean the bore well, and mix up a small amount of JB
> weld epoxy and coat the inner surface of the bore and the ledge where the
> plug seats with it.  Seat the plug in the bore properly (dome side out)and
> strike the center with a wide, flat tip punch to flatten the plug and widen
> it out.  Wipe of any excess epoxy and let it set up.  You won't have a
> problem with it again.
> 
> Bob J
> 
> 
> 
> -----Original Message-----
> From: Richard Osborne [mailto:richard@xxxxxxxxxxxx]
> Sent: Saturday, May 01, 2004 9:47 AM
> To: chrysler300@xxxxxxxxxxxxxxx
> Subject: [Chrysler300] G Freeze Plugs
> 
> 
> Good Afternoon,
> 
> Yesterday afternoon we (Tom Miller and I) finally fired the G for the
> first time. About 4 to 5 minutes into the cam break-in, it spewed a
> freeze plug from the right side cylinder head.
> 
> After a few adult beverages and a cool down, I easily popped the
> offending plug from the head. I was surprised to find a "flat" expansion
> plug. By this I mean that it doesn't have a flange.
> 
> I just got back from Car Quest with a couple of similar style plugs. Am
> I correct in understanding that the insertion method is to "ping" the
> center of these to make it expand and seat propperly? After looking at
> the previously installed vs. the uninstalled, this appears to be the
> case (I paid the machine shop to do this about 3 years ago, so I wasn't
> the original installer.).
> 
> Also, are these to be installed dry? It appearas as though the machine
> shop used some sort of tacky yellow colored stuff on the plugs when
> installed? Does this make sense. Of course, the machine shop was closed
> by the time all of this happened.
> 
> Please advise if the concave shaped plugs are meant to be installed by
> hitting in the center as to expand the plug and if you recommend
> installing these dry or with some sort of sealer?
> 
> I may try to put a temporary rubber plug in just to see how many others
> will pop out during operation. I'm not too sure I can get it in. We'll
> see.
> 
> Best regards,
> 
> Richard Osborne
> 
> 
> 
> 
> 
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> 
> 
> 
> 
> 



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