Radiator over flow
 

Replaced TT10 with W18, went for four mile drive had some radiator over flow, haven't been having this problem, number four plug had some discolor on out side of plug, TT10 were some sooting up. any idea?
Thanks
Dana

Re: Radiator over flow
 

I'd say it is just a coincidence. Unless you were driving faster this time with the new plugs than you were before. Radiator overflow really starts to kick in above 35-40 MPH, if you are going to have it. Causes can be traced back to missing baffle in the upper tank, restriction going down the core tubes, or you over filled it and the radiator is seeking it's own level.

Re: Radiator over flow
 

DROP A ROOFING NAIL INTO YOUR OVERFLOW TUBE AT THE TOP.
Bill W.

Re: Radiator over flow
 

Thanks Bill already in there, I cant see connection to new plugs, but number four plug got hotter than the others, enough to change color of plug to blue tint.
Thanks

Re: Radiator over flow
 

Are the plugs torqued EVENLY? At least 25 FT LBS. Plugs dissipate their heat through the threads & the copper sealing washers. ALWAYS use NEW washers, when you have the plugs out! The washers collapse @ about 25 Ft LBS of torque & allow uniform & MAXIMUM heat dissipation! A loose plug is almost like a ONE range, HOTTER PLUG. Also, make sure the head threads are NOT PAINTED!
Bill W.

Re: Radiator over flow
 

maybe its running hot ck the temp of the coolant