Tech TipsWatch this page for maintenance tips and short articles that, while not requiring a full, "Tech Topics" page, are definitely of interest to TC owners. |
FOLDING THE TC
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CHECK THAT STEERING! After reading Steve Simmons'
article, "A First Drive," in the June '05 Midget Chassis,
and after reliving a similar first drive of my own back in 1960,
I couldn't help but remember a few other TC "drives"
that didn't have such euphoric endings.
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COOLING YOUR TC From the April '05 Midget Classis New Guild member John Rode was reading over the TClinics he recently received and found an error. He wrote: "My quibble relates to the TClinic on coolant, and the advice regarding adding more coolant/antifreeze to the water if you want the victim to run cooler. My experience is directly contra, derived from a pair of Detroit Diesel 6-71 naturals in a former vessel I had for six years. Those magni·cent beasts were very prone to overheating as the weather and water temperatures rose above 60F. This drove me to a frenzy of heat-exchanger/intercooler boilings-out, belt replacement, tightening, loosening, impeller replacement & reinstallation, exhaust riser cleaning, and all the other fun (and expen$ive) things you can do in a hot engine room in June, July and August, to absolutely no avail. Then, in desperation, I measured the concentration of antifreeze: over 65%! Found a guru, who noted (a) in cold weather, never, never, never exceed a 50:50 mixture as that is the mixture which gives maximum protection from freezing; (b) water transfers heat MUCH better than antifreeze or other coolant preps; (c) for that reason, Detroit Diesels just overheat in the summer if the antifreeze is over 10-15%. He was absolutely right on all counts, so from that point onwards, I checked and adjusted the antifreeze concentration when the boat was returned to the water after winter storage. John can be contacted at <idle-hour@att.net> |
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