

| Subject: | Re: WAS: Starter Motor... Failure: NOW: 50 Circuit Weirdness. ECU Related? |
| From: | Scott Daniel - Turbovans |
| Date: | Sat, 15 Dec 2012 14:15:22 -0800 |
All fine, ....and.........you don't need the key on to do this test , unless you also want the engine to start. On 12/15/2012 1:38 PM, Mike B wrote: > You could try this, if you're good with electrical stuff and on a budget. > Turn the key to "on" (not 'start') and using a screwdriver, short > from the starter battery positive post to the solenoid push-on terminal > to check if the starter turns the engine over. If it does, it's a > problem in the key to solenoid circuitry. If it doesn't, short from the > starter batt positive terminal to the starter motor lead (bottom of the > solenoid) to check if the starter motor spins freely (it won't engage > the flywheel). If it does, the solenoid is defective and can be > replaced or rebuilt separately. If it doesn't, the starter motor is > defective and can be replaced or rebuilt. I used this troubleshooting > technique to locate a malfunctioning solenoid on my 1959 6V > screw-terminal starter (no longer available), and removed it and took it > apart by unsoldering the end and cleaning and lubricating the solenoid > piston/ cylinder and internal heavy solid copper relay contacts. I did > have to drill out 4 rivets and replace them with nuts and bolts (easy > future service?) on this antique starter, but the late ones have > threaded posts and solder connections, so they can be rebuilt. Usually > just a general cleaning and lube will make work like new again. The > problem with my old one was that carbon/dirt got in between the close > clearances inside and the oil turned to sticky tar over 50+ years. The > oil used to lube the starter/ solenoid is critical that it be a high > temp lube, as it gets very hot during use. The solenoid has two > independent windings inside, the big main one that has the power to > pull the solenoid piston in, along with the bendix mechanism that, > through a forked lever, throws the starter gear into the flywheel teeth. > There's also a smaller "helper" winding that helps hold the solenoid > in as long as the key is in the start position. It's this winding that > shows up as a small short while the solenoid is pulled in, as it > completes a circuit from the winding to the solenoid housing while > engaged. > > Mike B. > > On 12/15/2012 3:42 PM, neil n wrote: >> '88, stock 2.1 >> >> I somewhat cross posted here in an attempt to start a new thread. >> >> I was referring to the ICU. It is strapped to the intake snorkel. ECU >> is in stock location, no parts needed. >> >> Somewhere buried in my first thread I mentioned that my NEW remote >> starter switch tested bad. >> >> Thankfully I had the where with all to test it before using it! >> >> Neil. >> >> >> >> On Sat, Dec 15, 2012 at 12:30 PM, Scott Daniel - Turbovans >> <scottdaniel@turbovans.com> wrote: >> >>> what year is the van please ? >>> now that I read 'ecu cable-strapped to intake snorkle' it's >>> sounding like a >>> 1.9 wbxr. >>> Do you need a proper ECU mounting bracket from a 1.9 wbxr vanagon ? >>> >>> I still go for the Remote Starter Switch test right away .. ( like >>> in the >>> fist 4 minutes of 'starter-seems-dead' troubleshooting. >>> It takes the whole rest of the car out of the picture .. >>> Gets it down to just battery, starter, battery and ground cables, >>> thus eliminating and bypassing numerous possible weak areas. >>> Helps you know where to look for the real problem >>> >>> 'stubsitute and bypass' is a very useful diagnostic strategy often. >>> dig out your remote stater switch is my suggestion. >>> >>> >>> On 12/15/2012 11:31 AM, neil n wrote: >>> ..... Maybe >>> cable strapping the ICU (on its side) to the intake snorkel duct put >>> it in a poor position? >> >> >> -- >> Neil n >> >> 65 kb image Myford Ready For Assembly http://tinyurl.com/64sx4rp >> >> '88 Slate Blue Westy to be named. >> >> '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/ >> >> Vanagon VAG Gas I4/VR Swap Google Group: >> >> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines >> >
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