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  #1  
Old 02-10-2011, 02:47 AM
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Join Date: Oct 2009
Posts: 10
radiator leak at overflow fitting

The wife informed me today that the car ( 84 300tdt) was smoking a little when she turned it off today. When she pulled in I popped the hood and turned it off and saw steam coming out the barb connection at the radiator that goes to the overflow. The barb is cracked halfway through. Do I remove the barb and tap in a brass fitting or ???? I'm also super busy tomorrow but can work on it friday. Can she drive the car tomorrow if I make sure the radiator is topped off or am I asking for it? If anyone knows the specific size/type of replacement fitting that would be great.

thanks for the help!
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  #2  
Old 02-10-2011, 11:00 PM
compress ignite's Avatar
Drone aspiring to Serfdom
 
Join Date: Feb 2004
Location: 32(degrees) North by 81(degrees) West
Posts: 5,554
You Can TRY

the Brass fitting with a suitable sealant.

BUT the real problem is twofold:
1.O.O. (Other Owners) using non MB or Zerex G05 coolant (Weakens Plastic tanks)
2.Or AGE and heat cycles Embrittle the Plastic.

Driving with this symptom is at your own risk.
(Subject to Blowing Off the Plastic Nipple Completely ,when it's most inconvenient for the Supreme Commander.)
[With the nipple no longer sealing the cooling,all the coolant will leave.]

Usual Long Term Fix is a New Radiator.

Unsolicited Rant:
I suspect there is an Especially Warm Place in Hades for BOTH the Inventor of
Front Wheel Drive and the Jerk who Invented Plastic Radiator tanks.
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  #3  
Old 02-11-2011, 08:38 AM
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DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,138
I'd not chance driving this way. plastic epxy at Napa works 15 minutes it'll hold till you get new radiator
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
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