Search found 372 matches

by 64etype
Wed Nov 14, 2018 4:54 pm
Forum: Technical
Topic: Help pls - Alternator voltage too high, blowing LEDs?
Replies: 21
Views: 460
United States of America

Re: Help pls - Alternator voltage too high, blowing LEDs?

I couldn't find a data sheet for the dimmer, but one commenter on Amazon said he took one apart and the are three field effect transisters inside. My limited reading on Wikipedia suggests that FETs have an inherent resistance to voltage spikes. So maybe the little dimmer is a sort of blocking device...
by 64etype
Wed Nov 14, 2018 3:10 pm
Forum: Technical
Topic: Help pls - Alternator voltage too high, blowing LEDs?
Replies: 21
Views: 460
United States of America

Re: Help pls - Alternator voltage too high, blowing LEDs?

Id guess your dimmer device is a variable pulse width modulator type. It very rapidly turns the leds on and off. By varying the relative off and On times the dimming is achieved. If it works then fine. Could you (or perhaps Marek or Ray) speculate as to whether a PWM type dimming device (I'm sure y...
by 64etype
Wed Nov 14, 2018 12:16 am
Forum: Technical
Topic: Help pls - Alternator voltage too high, blowing LEDs?
Replies: 21
Views: 460
United States of America

Re: Help pls - Alternator voltage too high, blowing LEDs?

Thanks, Julian. The dimmer device in the photo is presently installed in the tach and speedo circuit, which is indeed "floating" in my installation. It works well in reducing the light intensity. I have no idea if it also serves the function of a limiting driver. (I do know the selected/reduced ligh...
by 64etype
Tue Nov 13, 2018 1:07 pm
Forum: Technical
Topic: Help pls - Alternator voltage too high, blowing LEDs?
Replies: 21
Views: 460
United States of America

Re: Help pls - Alternator voltage too high, blowing LEDs?

The simple answer is they are not really suitable for use in a vehicle. BOTH sides of the LED bulb here to be isolated from ground. They seem to limit at 350/700/1000 mA which will be for high power leds that will be far too bright for instrument lighting. Buy well designed (not cheapo) led bulbs d...
by 64etype
Mon Nov 12, 2018 11:14 pm
Forum: Technical
Topic: Help pls - Alternator voltage too high, blowing LEDs?
Replies: 21
Views: 460
United States of America

Re: Help pls - Alternator voltage too high, blowing LEDs?

I can't figure out how to wire the PT4115 driver described in the link attached to Post #4 above, but I'm guessing it or something like it is at the heart of the installation ready devices described in this link. http://www.luxdrive.com/content/2008B-PowerPuck.pdf The input wiring to this driver/buc...
by 64etype
Mon Nov 12, 2018 8:33 pm
Forum: Technical
Topic: Help pls - Alternator voltage too high, blowing LEDs?
Replies: 21
Views: 460
United States of America

Re: Help pls - Alternator voltage too high, blowing LEDs?

David, Several years ago and in the same timeframe that I installed the strip LEDs in the tach and speedometer, I built several LED strip light arrays for the boat. At the time, properly stabilized individual bulbs were extremely expensive. My strip light arrays for the boat were all burned out with...
by 64etype
Mon Nov 12, 2018 4:13 pm
Forum: Technical
Topic: Help pls - Alternator voltage too high, blowing LEDs?
Replies: 21
Views: 460
United States of America

Re: Help pls - Alternator voltage too high, blowing LEDs?

I'm listening! I used LEDs in the instrument lighting circuit only. I missed the caution regarding installation of a device like the PT4115. So far I've had no "bulb" failures in the LED instrument lighting circuit, but I guess it's just a matter of time. Failure of the strip lights in the tach and ...
by 64etype
Fri Nov 09, 2018 2:03 pm
Forum: General
Topic: Clip-On Bullet Mirror
Replies: 12
Views: 447
United States of America

Re: Clip-On Bullet Mirror

It clears the leading edge of the body seal. The door window frame seal is trimmed back in the area of the mirror bracket. Beats dings down the side of the car, and the window frame seal is simple to replace.
by 64etype
Thu Nov 08, 2018 10:28 pm
Forum: General
Topic: Clip-On Bullet Mirror
Replies: 12
Views: 447
United States of America

Re: Clip-On Bullet Mirror

I'm using the Tex clip-on, but modified the mounting such that it slides/loops over the leading edge of the window frame instead of gripping from the trailing edge. This keeps it somewhat attached even if it should come loose. The modification involved slicing the bracket lengthwise, and welding in ...
by 64etype
Sun Apr 29, 2018 3:34 pm
Forum: Series 1
Topic: Radio console - speaker cover panels for 3.8
Replies: 8
Views: 1050
United States of America

Re: Radio console - speaker cover panels for 3.8

Interesting discussion. My car is 889474. The radio console is the early style with chrome speaker bezels. It uses the brackets BD19049/19050. It does not have the lower mounting studs on the chassis tunnel (or evidence that they were removed). It has arm rests. The ash tray is the interim "oval wit...
by 64etype
Fri Apr 27, 2018 3:49 pm
Forum: Series 1
Topic: Sudden complete loss of fuel delivery
Replies: 28
Views: 1718
United States of America

Re: Sudden complete loss of fuel delivery

Dirt in the fuel tank could be accumulating on the fuel "sock' at the end of the pickup tube when the engine is running. Falls away when the suction stops. Begin again when the pumps starts drawing fuel. (Assumes the pump is functioning, of course).
by 64etype
Tue Apr 24, 2018 1:37 pm
Forum: Series 1
Topic: California Certificate of title
Replies: 3
Views: 485
United States of America

Re: California Certificate of title

The J64 on the title for my Texas registered car indicates it was original sold and titled in California.
by 64etype
Sat Apr 21, 2018 1:36 am
Forum: General
Topic: Tyres - 205/65R15
Replies: 12
Views: 922
United States of America

Re: Tyres - 205/65R15

My car has Sumitomo 205/65 AS PO2 tires (H rated) on the front and their 205/70 touring tire on the rear. With a 3.07 final drive ratio, the speedometer error is very small (less than 4% by my calculation). The front tires are very responsive with excellent grip. Can't say much about the rear. Steer...
by 64etype
Sat Apr 07, 2018 11:49 pm
Forum: Technical
Topic: Rope Seals v Lip Seals. Oh dear what have I done?
Replies: 9
Views: 1021
United States of America

Re: Oh dear what have I done?

I urge you to use the seal kit from Terry's instead of the one from SNG. The one in my car is absolutely leak free. (Presumably your engine builder knows to machine the crank for the new seal...different dimension depending on which kit you use).
by 64etype
Sat Apr 07, 2018 11:23 pm
Forum: Technical
Topic: Bump Stops in rear arches
Replies: 31
Views: 1701
United States of America

Re: Bump Stops in rear arches

This old racing photo comes to mind when the subject of E-type bump stops arises....


Image
by 64etype
Sat Apr 07, 2018 2:32 pm
Forum: Series 1
Topic: Fitting the badge bar into the nose of the bonnet - how?
Replies: 16
Views: 5760
United States of America

Re: Fitting the badge bar into the nose of the bonnet - how?

The trick for me was to use Allen head screws and a short extension.
by 64etype
Wed Apr 04, 2018 9:17 pm
Forum: Technical
Topic: Water pump removal on a 3.8
Replies: 6
Views: 628
United States of America

Re: Water pump removal on a 3.8

I removed and replaced the water pump (three times) last year without jacking the engine. With the pulley fasteners removed, the pulley itself can be maneuvered aside such that all pump bolts/nuts can be undone. Then wiggle the pump (with pulley) around until the magic position is achieved where the...
by 64etype
Thu Mar 29, 2018 8:57 pm
Forum: Technical
Topic: Which B-Pillar door rubbers do work ?
Replies: 3
Views: 335
United States of America

Re: Which B-Pillar door rubbers do work ?

Yes, it appears to be the same as Aramaflex. It's generically called foam weather stripping in the U.S. Black, rectangular cross section, adhesive on one edge...very inexpensive.
by 64etype
Thu Mar 29, 2018 7:54 pm
Forum: Technical
Topic: Which B-Pillar door rubbers do work ?
Replies: 3
Views: 335
United States of America

Re: Which B-Pillar door rubbers do work ?

After an ill-fated attempt to fit rubber seals from the usuals I took the approach depicted in the first portion of this video. Rolls of rectangular foam seals are available (in the U.S.) from any home improvement store. It comes in the exact width to fit the channel and in various thicknesses. Per ...
by 64etype
Thu Mar 22, 2018 5:38 pm
Forum: Technical
Topic: 3.8 castor & camber settings
Replies: 10
Views: 558
United States of America

Re: 3.8 castor & camber settings

mgcjag wrote:
Thu Mar 22, 2018 4:58 pm
With the engine in and no bonnet just jack under the lower wishbone to compress the suspension and install the shocks... Steve
I tried that and still had to add weight to get the suspension to compress enough to get the bolts in.