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  #1  
Old 29-11-15, 18:16
andrew honychurch andrew honychurch is offline
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Default T16 running problems

Hi Guys, its a very long time since I have posted on here, been busy with some other non military projects. Last time I used the T16 it konked out after 1.5 miles and limped the remaining half mile to the showground stopping every 100 yards. This is not a new phenomenon, and in the UK the T16 had the unenviable reputation for doing just this even when in service. I have heard all sorts of explanations but still not a fix. Suggestions such as faulty rotor arms in the Divers helmet distributor to fuel vaporisation etc etc. I am sticking my neck out but I reckon it's ignition from the way it dies. I was also told years ago by a very competent mechanic that 90% of carburettor problems are electrical, and I must say my experience sort of bears this out.

Anyway, it is time to solve this issue and enjoy the lovely T16 as it was intended to be used.

I am running a 12v coil mounted on a bracket off the cylinder head through an adaptor onto the top of the divers helmet dizzy. Yes it get hot in there, and the coil gets very hot but perhaps if the rotor arm is shorting this is overworking the coil.

Anyway, I am sure this has been discussed or experienced before so please help me get this sorted .

I don't want to really buy a modern distributor at least until I know FOR CERTAIN that this is the problem. Arggh!
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  #2  
Old 29-11-15, 18:25
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jeff davis jeff davis is offline
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Default T16 problems

Are you using a internally resisted coil?
If not pick one up it sounds like coil overheating and quits working .
Jeff
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  #3  
Old 29-11-15, 18:33
andrew honychurch andrew honychurch is offline
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Hi Jeff, thanks for the reply. Do you mean a Ballasted coil? In fairness I cannot recall and have not even opened the engine decks for 12 months out of disgust! If it's a non Ballast coil it would be running at 13 plus volts I suppose . What do you reckon it should be running Then? Also, I guess a 12 v coil may have found it was easier to short a tired old rotor arm out than the original 6v coil?
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  #4  
Old 29-11-15, 18:59
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jeff davis jeff davis is offline
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Default Coil

Take a look see what kind of coil your running.
Not sure on voltage output. My Carrier also had problem with blocked fuel line that allowed me to drive it long enough to have it stall in awkward position during parades .
I have a Mgb that I dropped a fridge on and smashed the hood that has not seen road for years because I am so pissed off .
Regards
Jeff
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  #5  
Old 29-11-15, 19:12
andrew honychurch andrew honychurch is offline
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Quote:
Originally Posted by jeff davis View Post
Take a look see what kind of coil your running.
Not sure on voltage output. My Carrier also had problem with blocked fuel line that allowed me to drive it long enough to have it stall in awkward position during parades .
I have a Mgb that I dropped a fridge on and smashed the hood that has not seen road for years because I am so pissed off .
Regards
Jeff
Ah, yes these things can be very frustrating. I will check the coil tomorrow and report back.

Richard, I will check the coil wiring and think about the condenser, but must remember that this is a T16 problem so on any normal ignition issue I would of course think these are real possibilities. Perhaps it's throwing me off the scent and it is one of these after all . I wonder if there is an electronic ignition kit that fits in the divers helmet dizzy?

I was speaking with our mutual friend Bill who recalls going on a road run with 7 or so T16s and every one stopped dead and were towed off to ashford never to be seen again!
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  #6  
Old 29-11-15, 19:43
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horsa horsa is offline
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Might be good to verify the cable from the coil to the dizzy is good. Breaks, bad connection or corrosion would prevent the coil from being able to hand off power and it would overheat and produce intermittent performance. When restoring the dingo recently, I had very similar issues which symptoms would have indicated a fuel issue. Vehicle would start from cold and run smooth a bit before seeming to have a fuel starvation issue with rough running and then stopping. Couldn't restart immediately which would have seemed like the engine was flooded or we had a vapor lock issue. Coil was extremely hot though after a race car mechanic suggested it was an electrical issue. In out case is was coil issues and this resolved everything. If it ends up being the same situation for you, a heat shield for the coil, or modification of the mounting bracket to get t further away from the head might help. Alternately getting a coil that is rated for high heat and for shock since some will fail if bounced around too much.
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  #7  
Old 29-11-15, 19:01
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Richard Farrant Richard Farrant is offline
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Hi Andrew,
Usually when a rotor arm fails, it is tracking through a crack to the distributor shaft. When this happens it is normally terminal, ie no go, no more. Intermittent as you describe, gets hot and stops, cools down and goes again, sounds like a condenser failing.
Another thing, make sure the coil is wired the correct way around.

cheers Richard
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