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Pancake light lens replacement ideas...
Posted: Mon Apr 08, 2013 11:53 am
by Matt Kirsch
TM Tractor used to sell a light unit that looked just like a pancake light on the outside, but had guts similar to the old bullet style on the inside.
I've got a pair of those... and broke a lens.
At one time you could buy a conversion kit for your pancake housings, but those are long gone...
Any ideas how to replace that lens and get the "right" look without having to buy a $50 sealed beam bulb?
If I didn't care about the look I would use my patented bulb conversion technique... I do have a stash of old burned out pancake bulbs... Do any of you know/think it would be possible to separate the lens from the body on one of those?
Re: Pancake light lens replacement ideas...
Posted: Mon Apr 08, 2013 5:11 pm
by baldwindiesel
Matt:
I have been told that PILOT KNOB RESTORATIONS has that kit . I would like to eventually buy those for my 1957 CUB, but in the mean time I went to NAPA and bought the newer sealed beam style. Thanks to information on this forum I was able to fit them into that PANCAKE housing and everything works great.
Baldwindiesel
Re: Pancake light lens replacement ideas...
Posted: Mon Apr 08, 2013 6:52 pm
by VinceD
Baldwindiesel, what was the NAPA number? Thanks.
Re: Pancake light lens replacement ideas...
Posted: Mon Apr 08, 2013 8:38 pm
by Jim Becker
Matt Kirsch wrote:Do any of you know/think it would be possible to separate the lens from the body on one of those?
I've done it. It has been a long time so I don't remember exactly. But as I recall, the lens and reflector have some sort of RTV like material between them and there is a band around the joint (or maybe the reflector edge is crimped). Just start tearing off whatever is on the edge and they eventually come apart.
Re: Pancake light lens replacement ideas...
Posted: Mon Apr 08, 2013 9:40 pm
by baldwindiesel
Sorry, I no longer have the NAPA number as I thru the boxes away. They can look it up for you, be sure to get the right voltage bulb in case you now have a 12 volt system.
baldwindiesel
Re: Pancake light lens replacement ideas...
Posted: Tue Apr 09, 2013 1:42 am
by sgtbull
I don't recall the #, but it is a common, inexpensive 4" bulb. It will have indexing bosses cast on the rear of the bulb. You will have to CAREFULLY grind them down and fabricate a short ground wire for one terminal. Its not difficult by any means, and beats the heck out of paying the big bucks for a reproduction bulb.
Re: Pancake light lens replacement ideas...
Posted: Tue Apr 09, 2013 8:37 am
by tst
4511
Re: Pancake light lens replacement ideas...
Posted: Tue Apr 09, 2013 6:27 pm
by Matt Kirsch
Yup 4411 for the 12V and 4511 for the 6V IIRC.
Re: Pancake light lens replacement ideas...
Posted: Tue Apr 09, 2013 7:07 pm
by Matt Kirsch
SUCCESS! I harvested a lens from one of my dud bulbs.
... and boy do I feel gypped!
Those sealed beams aren't really sealed beams! There is a steel reflector crimped around a glass lens. Inside, is basically just a PLAIN OLD BULB, soldered into the center of the reflector! For want of a $2 bulb, you have to buy the whole $42+ "sealed beam" unit.
Who says making things unrepairable so expensive proprietary parts is a new thing?
Re: Pancake light lens replacement ideas...
Posted: Tue Apr 09, 2013 7:30 pm
by VinceD
Thanks guys, We are going to town on Friday and will pick up some of the 6-volt bulbs (4511).
Re: Pancake light lens taken apart
Posted: Wed Apr 10, 2013 10:09 pm
by baldwindiesel
Matt:
Since you took an original lense apart was it possible to replace the inner bulb and put the sealed beam back together ????
I saved my old original ones just in case.
Baldwindiesel