I am back to wiring my Manx, testing every component BEFORE final installation. I am using all original (1969) components but have been replacing them one by one as they don't test out (so far only the Dimmer Relay worked first time). My latest problem APPEARS to be the flasher and turn signal relay (Hella 211 953 215c). The turn signals work just fine (after replacing the turn signal assembly), but when activating the emergency flasher switch, the relay just LOUDLY buzzes off and on without the lights flashing. I have triple-checked all of the wiring hook-ups and the switch and flasher are grounded. The original emergency flasher switch worked fine at first, but then went silent depending on how I held the switch. After a short while the flasher started moaning (as it is now). The bakelight is loose on the switch, so I assumed it was DOA. Sooooo, ordered a new switch and presto! Both switches get the same results with the ugly noises coming out of the flasher (although the old switch still is flakey depending on how it is held). BTW, the KBL prong on the flasher is not hooked to anything, and the #54 and #54f prongs on the emergency flasher switch are not hooked up. Any ideas before I pick up a new flasher/relay?
If you charge the battery THINGS MIGHT WORK! With all of my testing (including cranking the motor) I pulled the battery down enough that one side would flash (turn signals) but the 4 way wouldn't close the relay. Put the battery charger on it for a while and Viola! The emergency flashers now work! Last circuit to be tested, ready to assemble the dash and finish out the wiring! Never had any of these problems on the last Manx I wired (1982) but the donor 1969 VW was only 13 years old then, not 36 years old...
Definitely check that you have full battery voltage. Also check that you have proper voltage at each point in the curcuit. It's amazing the strange things that happen with low voltage.
:laugh1: I don't feel so bad now. With a freshly charged battery the flashers worked for a short while, then nada. After checking the new switch (Ok) I finally replaced the flasher with the new cube type replacement part. Bingo, it works great. Obviously what was happening with the old flasher was that it took an exceptional amount of current to trip the relay, then finally gave up after a while. Now I can finally move on. Thanks for everyone's help; one ought not to trust 36 year old mechanical-based electrical stuff...