[net.auto.tech] tire inflation pressure and headlamps

herbie@polaris.UUCP (Herb Chong) (03/01/86)

1) my Prelude has Michelin MXV radials that Honda recommends be
inflated to 28 on the front and 26 on the rear.  i keep them inflated
to 32 on the front and 30 on the rear.  aside from the harsher ride,
what are the other effects of doing this?

2) a Prelude has hidden headlamps.  i have replaced the sealed beam
units with halogen bulb lamp housings so that i could take advantage of
the better light pattern provided by bulbs.  whenever i wash my car,
water gets into the lamp housing so that in cold weather i get frost
and ice inside my headlights and just plain condensation when it's
warmer.  aside from ruining the pattern, it also reduces the amount of
light.  has this kind of thing happened to any other people?  i know of
at least one other person this has happened to without having to wash
their car first.  it seems that when my headlights are down, the a pool
of water forms in the rubber boot covering the bulb and slowly leaks
in.  ordinary sealants can't be used because the bulb gets very hot.  i
am thinking of drilling a hole in the bottom of each housing (the
reflector is coated fibreglas).  taking the headlamps out after washing
to drain them is a pain, taking about an hour to remove, drain, and
reinstall the housings, not to mention the re-alignment time.  can
anyone help with this?

Herb Chong...

I'm still user-friendly -- I don't byte, I nybble....

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burden@gndzro.DEC (03/04/86)

 
 
Tire pressure:  As long as you don't exceed the max pressure on the side of the
tire you won't do any harm.
 
Headlights:  I had a similar problem with a pair of Marchals I had on my '78
Rabbit diesel.  Whenever there was heavy fog or rain the inside of the lenses
would fog up.  One side would be worse than the other for some reason.  I
forget which side it was, but I figured it had something to do with being
closer or further away from the engine.  I used to remove the bulbs first and
hope they would dry out, but that didn't work too well.  I usually ended up
removing the entire unit and draining them like you're doing.  I finally ended
up drilling a small hole in the base of the reflector.   My reason for doing it
was because of the pool of water that would gather at the base of the unit.  I
was concerned that it would rust through.  It did help the condensation a bit
though.  I've had a set of Cibies on my Rabbit GTI for 3 years and have not had
any problems with them fogging up.  Of course, this might be attributed to the
fact that I'm using 90/100 bulbs...:-)
 
 
 
Dave Burden					/-> dec-gndzro!burden
603-881-2559		decvax!decwrl!dec-rhea!<
Nashua, NH					\-> dec-cheers!burden
42 42' 48.8'' N
71 27' 23.7'' W
						

mark@gatech.CSNET (Mark Johnson) (03/12/86)

Ordinary houshold silicon sealant will handle the heat with no problem.


-- 
Mark Johnson
(404) 894-2746 		(404) 894-3152 
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