[Healeys] Replacing the starter with a gear reduction starter

Bob Spidell bspidell at comcast.net
Sat Dec 12 09:19:12 MST 2020

Almost sounds like all Lucas electricals need a GFI!

On 12/12/2020 7:50 AM, john harper wrote:
> Bob
> The earthing of the starter to the engine is as you say but the worst 
> case I have heard of was bad starting and final a burnt out the speedo 
> cable. The strap from the engine plate to the chassis had become very 
> frayed and burnt looking. How I don't know but when checked it was not 
> tightly bolted to the chassis. There must have been localised heat at 
> this connection that heated up the strap until it became open circuit. 
> Once it became open circuit there still had to be a way to earth and 
> this just happened to be up the speedo cable but could have been 
> anywhere where there was an electrical connection from the engine to 
> the chassis.
> On Fri, 11 Dec 2020 at 16:27, Bob Spidell <bspidell at comcast.net 
> <mailto:bspidell at comcast.net>> wrote:
>     My BN2 became hard to start a while ago. I installed new batteries
>     and had the starter rebuilt, and I painted it. When I'd initially
>     installed the starter I'd used grade 8 bolts, grade 8 nuts and
>     grade 8 split washers and flat washers under the nuts. I took the
>     starter to a local shop, who said the starter checked-out fine.
>     When I re-installed it I omitted the flat-washers, and the starter
>     worked! Apparently, there was enough paint on the starter and the
>     engine paint to prevent good conduction; the split washers cut
>     through the paint enough to allow conductivity. I don't know if
>     grade 8 hardware is less conductive than grade 5, but since the
>     starter is grounded through the engine plate you need a good
>     connection there (IOW, scrape the paint off).
>     On 12/10/2020 8:36 PM, banjojohn via Healeys wrote:
>>     I expect you've already checked other possible reasons for hard
>>     starting issues, but I had a problem a few years ago that turned
>>     out to be a poor connection at a battery terminal resulting in
>>     high resistance.  Just a thought before you start replacing
>>     things is to check connections and grounds.
>>     John O'Brien
>>     '61 bugeye (Lucy)
>>     '65 BJ8 (Madelyn)

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