Slow moving windows
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malc4d (10-18-2018)
#3
Also look a Palm's book concerning installing relays to let the window motors run on direct battery power, instead of sending all the current through the crappy power window switches. I did it on my '87 and it made a huge difference on how fast the windows now operate.
Thanks,
John,
1987 XJ-S V12
Thanks,
John,
1987 XJ-S V12
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malc4d (11-22-2018)
#5
The contacts on the switches also get worn. I replaced my window switches and it made a huge difference. Measured old and new switches and the old switches had significantly more resistance. When new, the switches can pass plenty enough current to power the windows. But as they age the switch becomes a huge resistor.
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malc4d (11-22-2018)
#6
On a convertible it's common for the window switches to get dirty internally and make poor contact. Unplug and remove the switches and thoroughly spray good quality contact cleaner* into the switch at the edges of the button and while rocking the buttons back and forth. Let them dry fully before reinstalling.
*DO NOT use WD40, it will only make things worse.
*DO NOT use WD40, it will only make things worse.
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Agreed.
WD40 is best described as a mild, slightly oily solvent. I love the stuff, 1001 uses, but it isn't the best choice for cleaning switches. It'll work in a pinch, though. I just used it to fix my defogger switch....followed by a rinse with brake spray.
Lots of good electrical cleaners out there....and thanks for the reminder that I need to get some !
Cheers
DD
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malc4d (11-22-2018)
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Exactly.
It's a solvent, not a lubricant.
It will 'free up' lots of stuck things....but won't lubricate them.
Fantastic product for cleaning lots of stuff. Mild enough that it basically won't hurt anything
And, yes, whatever petro ingredients it has do indeed push water out of the way !
Cheers
DD
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malc4d (11-22-2018)
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I used the head lamp washer pump for the l.h.jet and the original pump for the right hand jet as I fitted the later water tank under the r.h. wing where the vac tank used to go, with power wash pump just for the power wash set up.. Never needed them but looks interesting at the front, imo
they are new pumps but to be honest they are no stronger than the old ones, I may have a go at fitting a relay when the weather warms up
they are new pumps but to be honest they are no stronger than the old ones, I may have a go at fitting a relay when the weather warms up
Last edited by rgp; 11-25-2018 at 03:45 PM.
#18
[QUOTE=rgp;1993147]I used the head lamp washer pump for the l.h.jet and the original pump for the right hand jet as I fitted the later water tank under the r.h. wing where the vac tank used to go, with power wash pump just for the power wash set up.. Never needed them but looks interesting at the front, imo
they are new pumps but to be honest they are no stronger than the old ones, I may have a go at fitting a relay when the weather warms up[/QUOTE
Rex, Just to e clear, I meant I bought a Delphi headlight washer pump for another car application entirely, not the XJS OEM second headlight wash/wipe pump. The new pump is for the wiperless, jet-type of headlight washer, and is about 2 times the size of the OEM pump, and really drenches the screen.
they are new pumps but to be honest they are no stronger than the old ones, I may have a go at fitting a relay when the weather warms up[/QUOTE
Rex, Just to e clear, I meant I bought a Delphi headlight washer pump for another car application entirely, not the XJS OEM second headlight wash/wipe pump. The new pump is for the wiperless, jet-type of headlight washer, and is about 2 times the size of the OEM pump, and really drenches the screen.
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rgp (11-26-2018)
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