Topic: Radiator Drain Plug
in Forum: C3 Cooling and Heating Systems
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I have a 1973 Vette small block and would like to drain the radiator as part of normal maintenance, I have looked every where and can't find petcock. Please advise.
Thanks Frank
74-454
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Canada
Joined: 8/6/2004
Posts: 533
Vette(s): Coupe 74 - 454
Drive it like you stole it!
Sorry, I don't know the exact location, but I think mine is on the passenger side (bottom of course).
I have read on similar thread before that there is a risk that the petcock will get damaged when you remove it. Be carefull with the inside thread of the radiator and have another petcock from the part store on hand when you do it. If it's not damaged, the just return it to the parts store.
Have fun!
my7t1
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Dorr, MI - USA
Joined: 8/21/2002
Posts: 2581
Vette(s): 71 Colonnade Hardtop Coupe
Torch Red with black interior
originally L48 built to push around 360hp
Yes it should be on bottom under lower hose. If you do screw it out be sure and not break the solder joint. Personally I would put a pan under the rad. & pull the bottom hose. Its kinda messy and a good way to get your shoes washed.
Got to agree with my7T1 and just pull the bottom hose. If you bust the solder joint (especially if you have an aluminium radiator) it's gonna be a lot of work to fix it.
Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20213
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
One more vote for the "Don't mess wid it" group!!
Mine twisted the complete fitting out of the rad.! Mine does not have a petcock, it only has a pipe-plug. Pull the lower hose and save yerself a big headache!!
Mine twisted the complete fitting out of the rad.! Mine does not have a petcock, it only has a pipe-plug. Pull the lower hose and save yerself a big headache!!
Joel Adams
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
in Forum: C3 Cooling and Heating Systems
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