[Healeys] Overdrive solenoid

[Bob Spidell]

Did you check/change the switch? All the wiring and connections to the O/D? 

Bob 

-------------------------------- 
Bob Spidell - San Jose, CA 

----- Original Message -----
From: "Pieter and Linda" <pieters at pt.lu> 
To: "Bob Spidell" <bspidell at comcast.net> 
Cc: "Healey List" <healeys at autox.team.net> 
Sent: Monday, October 3, 2011 9:36:01 AM 
Subject: Re: [Healeys] Overdrive solenoid 

Bob, 
I haven't rushed to a conclusion. This has been going on for a few weeks now and I have checked everything I can. Oil pressure is good, oil level is good. I have checked and cleaned filters. Checked and filed the relay points. Adjusted, checked and rechecked the solenoid adjustment. I don't know a way of checking the internal solenoid switch of the strength of the smaller field coils. Hence my question, 
Pieter 


On 03/10/2011, at 6:16 PM, Bob Spidell wrote: 




re: "My only suspect it the solenoid" 

Why the rush to judgement without diagosis? The shop manual has a good diagnostic sequence. 

Had similar symptoms on my BJ8 a few years ago. Tracked it to the O/D relay--courtesy of the manual--and filed the points and the problem went away (you can carefully open up the relay to inspect the points). That's an easy/free check. 

Bob 

-------------------------------- 
Bob Spidell - San Jose, CA 

----- Original Message -----
From: "Pieter and Linda" < pieters at pt.lu > 
To: "Healey List" < healeys at autox.team.net > 
Sent: Monday, October 3, 2011 7:33:43 AM 
Subject: [Healeys] Overdrive solenoid 

Hi Guys, 
I have a perplexing problem with my overdrive. It is in good condition with 
upgraded clutch, accumulator etc. It engages quickly but after a few minutes 
of driving it starts to jump in and out of overdrive. I don't have a throttle 
switch fitted. My only suspect it the solenoid. Since there are 2 windings, 
one to engage the overdrive and one to keep it engaged, could it be that the 
internal switch or winding fault is causing it to "drop out" and then the 
stronger winding immediately re-engages the overdrive? Opinions? 

2nd question is the replacement solenoid. There seems to be a wide variety of 
prices for this part from all the usual suppliers. Are solenoids all the same? 
Can anybody recommend which to buy or which to avoid? 

Thanks as always, 
Piet