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Interesting comment about heat... Posted by SLAAB [Email]  (#1275) [Profile/Gallery]
(more from SLAAB) on Tue, 29 Jul 2003 09:24:27
In Reply to: DI Cassette Theory - for what its worth....., d442, Tue, 29 Jul 2003 08:10:30 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I live in Florida. Its pretty famous for hot summer weather. The A/C is always on during the day (no wonder the car performs better in the dark!)
I had already replaced a DI cassette. The coils were leaking juice (not electrons, but some black gunk) at the time it failed. In taking a look at the design of the DI, the thick plastic coil carrier looks like it would trap a lot of heat. Every other manufacturer that has coil over plug ignition mounts the coils individually. Presumably this helps the coils last longer.
Has anyone tried separating the coils from the DI cassette carrier or drilled cooling holes in the DI cassette to have everything last longer?
Here are some suggestions from my mud boggin friends to help others in hot climates:
Run lower concentration of antifreeze in your coolant. Water exchanges heat a lot better the ethylene glycol. You still need antifreeze for its corrosion preventative properties.. just reduce the portion of antifreeze to water. Add RedLine Water Wetter to improve heat transfer properties of your coolant. If you live in an area that has something called winter... remember to flush and add coolant with higher concentration of antifreeze in the fall.
Core the thermostat if you don't live in a state with emissions testing. Thermostat is basically a temperature sensitive valve in the coolant system. Closed at low temp, open at high temps. You want this closed at low temp to speed engine warm up and reduce emissions. Opening will allow the coolant to flow to the radiator. Even open, the valve restricts coolant flow. Coring the thermostat removes everything from the middle of the valve, leaving a big passage for coolant to flow. Improved coolant flow improves cooling.
There is a common claim that batteries die faster in hot weather. Part of this is, for some mysterious reason, the battery water level drops faster in hot weather. Pry open the caps on your 'maintenance free' battery and check that the plates are completely covered in water. If not, add distilled water. This will make your battery last longer. Exception is gel or spiral sealed batteries where there is nothing to do.
Use higher temp engine oil grade. They offer better engine lubrication at high temperatures and therefore reduce heat from engine friction. Standard fill is 5W30. I use Mobil 1 0W40. Some folks I know use 15W50, but thicker oils like this make your engine hard to start.
posted by 209.219.20...
, Tue, 29 Jul 2003 10:49:42, Tue, 29 Jul 2003 09:24:27 <-- Viewing This Message
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