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check out this weird soft-plug #1436245 05/14/13 02:46 PM 05/14/13 02:46 PM
Joined: Jan 2003 Posts: 1,365 elmira ny hp340nos OP pro stock
hp340nos OP pro stock Joined: Jan 2003 Posts: 1,365 elmira ny	recently bought a 73 340 motor and this soft plug was in it.its a dorman part# it looks to be copper,its really heavy.never seen one like this. 7705673-050.JPG (114 downloads)

Re: check out this weird soft-plug [Re: hp340nos] #1436246 05/14/13 02:50 PM 05/14/13 02:50 PM
Joined: Oct 2005 Posts: 8,871 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,871 Ontario, Canada	That looks like one of those plugs that melts if you overheat the motor and therefore void the warranty. Wreckers put them on motors and I imagine engine rebuilders would too. By removing it you've voided any warranty you would have had.

Re: check out this weird soft-plug [Re: Stanton] #1436247 05/14/13 02:58 PM 05/14/13 02:58 PM
Joined: Jan 2003 Posts: 1,365 elmira ny hp340nos OP pro stock
hp340nos OP pro stock Joined: Jan 2003 Posts: 1,365 elmira ny	this is different then those.we use to put them(the melt away style) in some of the dirt motors at the shop i use to work at.this actually has a nut u tighten to hold it in the block. 7705690-052.JPG (79 downloads)

Re: check out this weird soft-plug [Re: hp340nos] #1436248 05/14/13 04:25 PM 05/14/13 04:25 PM
Joined: Jul 2011 Posts: 817 Eugene, Oregon Secret Chimp super stock
Secret Chimp super stock Joined: Jul 2011 Posts: 817 Eugene, Oregon	Ah I heard of those but I'd never actually seen one. The inside section must be an incomplete torus (donut shape) that can expand outward as you tighten it. That's pretty neat. But it's also not terribly hard to get a regular plug in using a socket and extension to tap it in evenly... 1967 Dodge Coronet Deluxe station wagon 1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s

Re: check out this weird soft-plug [Re: Secret Chimp] #1436249 05/14/13 06:37 PM 05/14/13 06:37 PM
Joined: Oct 2005 Posts: 8,871 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,871 Ontario, Canada	handy in tight confines !!

Re: check out this weird soft-plug [Re: Stanton] #1436250 05/14/13 08:24 PM 05/14/13 08:24 PM
Joined: May 2005 Posts: 4,724 Florida BDW master
BDW master Joined: May 2005 Posts: 4,724 Florida	What exactly would this be used for?

Re: check out this weird soft-plug [Re: BDW] #1436251 05/14/13 08:59 PM 05/14/13 08:59 PM
Joined: Jan 2003 Posts: 21,072 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,072 Niles , Ohio	Those are replacement plugs.Used them at the shop where it was $$$$ to replace a standard soft plug.They go in the hole and there is a nut that tightens and expands it.I used a lot on the old junkers we used to get at work.They actually work very well and last.I installed one that I know was in for at least 5 years and no problems.They came out after the rubber type.Rocky Chrysler Firepower

Re: check out this weird soft-plug [Re: therocks] #1436252 05/14/13 09:51 PM 05/14/13 09:51 PM
Joined: Aug 2010 Posts: 343 S.E.Mich D drew72 enthusiast
drew72 enthusiast D Joined: Aug 2010 Posts: 343 S.E.Mich	Yep, it's an expanding freeze plug. Does work nicely when the bore in the block is cleaned up nicely. But, even then I wouldn't consider it a permanent repair myself.

Re: check out this weird soft-plug [Re: drew72] #1436253 05/15/13 08:32 AM 05/15/13 08:32 AM
Joined: Jan 2003 Posts: 21,072 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,072 Niles , Ohio	You guys must not work on cheap peoples cars.Here they want it fixed at the least amount of $$$$.After 30 years in a shop I can tell you Ive seen it all.tell a customer its say 500 bucks of 75 and they will always take the 75.Even the people with $$$$ want cheap.Had a guy with a brand new Caddy in for an oil change.When we told him it was 7 qts he said just put in 5 and Ill drive it like that.Then we told him it said Mobil 1 only and his reply.Just put in the cheapest oil you have.Needless to say we showed him the door.A $60K car with 5000 miles on it.No way was I doing that.Rocky Chrysler Firepower

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