[Healeys] It's not the starter

Patrick & Caroline Quinn p_cquinn at tpg.com.au
Sat May 28 16:42:41 MDT 2022



Thank you David.


It is a 100S gearbox with a grafted overdrive. It’s been like that since it was built by the DHMC in the early 1950s. Plus a BJ8 clutch and pressure plate which was there when I bought it in 1974, so heavens knows where that came from.


No problems with that previously.


Hoo Roo




From: David Nock <healeydoc at gmail.com> 
Sent: Saturday, 28 May 2022 11:38 PM
To: Patrick & Caroline Quinn <p_cquinn at tpg.com.au>
Cc: healeys at autox.team.net
Subject: Re: [Healeys] It's not the starter


Which transmission is in the BN3. If you put a later clutch cover in a 3 speed trans. The cover will hit the bell housing, only allowing the engine to move a little turn. Same problem on the early BN4 transmission. There is a casting inside the housing that if you installed the later 3000 style clutch cover. It will hit and cause the problem you are explaining. 

David Nock


Sent from my iPhone

On May 27, 2022, at 11:38 PM, Patrick & Caroline Quinn <p_cquinn at tpg.com.au <mailto:p_cquinn at tpg.com.au> > wrote:



Thank you to all who replied.


It remains a mystery. I had an AH owning mechanic here today to trying a work out what’s happening with the engine of the BN3.


Plugs are out as is the starter. By putting a mark on the harmonic balancer and the use of a large screwdriver we found out that the engine will turn a quarter turn and back the other way a quarter turn before it stops solid.


So it will be a process of elimination starting with an endoscope in a few days. The radiator has been removed (no mean feat as it comes out via the grille opening) to gain access to the crankshaft nut and timing cover.


Will keep you informed.


Hoo Roo


Patrick Quinn

Blue Mountains, Australia


From: Healeys <healeys-bounces at autox.team.net <mailto:healeys-bounces at autox.team.net> > On Behalf Of Patrick & Caroline Quinn via Healeys
Sent: Sunday, 22 May 2022 9:26 PM
To: healeys at autox.team.net <mailto:healeys at autox.team.net> 
Subject: [Healeys] It's not the starter




A problem to consider.


Went to turn the engine over in the BN3. An early C-Series six-cylinder. Rebuilt about five years back, but seen next to no use.


Solenoid clicks, but no movement from the engine. Must be the battery so charged it, but no change.  Tried a brand new battery, but still no movement.


Out comes the starter and connect it straight to the battery. Whirr away on the floor. Perhaps the original Lucas starter is breaking down under load?


It occurs to me to try and turn the engine over by hand. Gearbox tunnels not fitted so easy to wield a large screwdriver to leaver the flywheel, after removing the spark plugs. It moves about six teeth of the ring gear, but no more. It moves back the same in the other direction, but no further. Soon lose interest in this manoeuvre. 


What’s up? Why won’t the engine turn over? Thinking cap on and perhaps it’s something at the top of the engine such as valve gear. Perhaps there is a bent valve?


Any opinions out there?


Many thanks


Patrick Quinn

Blue Mountains, Australia






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