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Post by richard on Sept 28, 2021 15:16:43 GMT
hello
after removing the coil from the bike, i checked the primary side and was getting about 1ohm, but nothing on the secondary side, from what i have read, should the secondary side read in the 14k range ?
i removed the plug caps but still nothing on the secondary side
to measure the primary i placed each probe into the 2 pin connector coming from the coil, set the multimeter to 200ohms and it read 1ohm to measure the secondary i left one probe connected in the 2 pin connector and placed the other probe into the /plug cap/plug lead and set the meter to 20k, but nothing..
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Post by johnjones on Sept 28, 2021 16:11:07 GMT
That's a good sign...
The secondary HT circuit is independent of and insulated from the Lt circuit.
2 independent fine wire coils connected in series and wound over the thicker wired looped Lt circuit.
Any HT lead wobble in the coil HT Towers is bad, a failure of HT is coming/developing.
Get a pair of those inline red neon plug caps and make a pair of adapters, it will save hair loss and stop dizzyness !
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Post by richard on Sept 28, 2021 16:25:05 GMT
That's a good sign... The secondary HT circuit is independent of and insulated from the Lt circuit. 2 independent fine wire coils connected in series and wound over the thicker wired looped Lt circuit. Any HT lead wobble in the coil HT Towers is bad, a failure of HT is coming/developing. Get a pair of those inline red neon plug caps and make a pair of adapters, it will save hair loss and stop dizzyness ! hello
hmmmm...to late for the hair loss i am afraid
when i bought the bike, the right-hand plug lead has been chewed up as it enters the coil [ somebody obviously thought it was removable ] although there is no discernable play/wobble in the lead
both cylinders get a spark, although its quite weak [ checked by running an earth from each plug to the frame ] and i have a misfire between 0-2500rpm [ roughly ] above that rev range it seems to be ok
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Post by johnjones on Sept 28, 2021 17:08:00 GMT
The red neon plug caps when fitted in line with the HT lead via an adapter, mean the engine can be run and the HT output seen via the flash.
They flash as HT passes thru.
You will notice a rather feable flash when cranking which grows when engine starts, and grows much brighter when the engine is revd.
They can be seen easily at night whilst riding.
You can see a missing flash if misfire is due to missing HT.
They are not expensive, easy and quick to use giving a real world indication as to HT health.
You will need a bloody long lead for a scope, but perhaps a laptop scope would be of benefit.
Maybe the last owner glued the mangled lead in place ?
They are glued in when new to stop movement and protect the soldered joint to the thin, but doubled up twice, HT inner coil wire/s.
There is an HT coil from the car world that will work, but it's a bit bigger and a different shape to the oe HT coil.
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Post by richard on Sept 28, 2021 17:17:13 GMT
The red neon plug caps when fitted in line with the HT lead via an adapter, mean the engine can be run and the HT output seen via the flash. They flash as HT passes thru. You will notice a rather feable flash when cranking which grows when engine starts, and grows much brighter when the engine is revd. They can be seen easily at night whilst riding. You can see a missing flash if misfire is due to missing HT. They are not expensive, easy and quick to use giving a real world indication as to HT health. You will need a bloody long lead for a scope, but perhaps a laptop scope would be of benefit. Maybe the last owner glued the mangled lead in place ? They are glued in when new to stop movement and protect the soldered joint to the thin, but doubled up twice, HT inner coil wire/s. There is an HT coil from the car world that will work, but it's a bit bigger and a different shape to the oe HT coil. hello
you mentioned an adaptor...what does such a thing look like ?
and what coil from the car world can be made to fit...make/model etc ?
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Post by johnjones on Sept 29, 2021 7:37:42 GMT
All the red neons I have seen have the nipple type connections.
Not a problem at the plug end, just screw on a nipple, but at the lead end the neons nipple is permanent, or at least I haven't tried to unscrew it. The neon at that end won't go into the NGK oe plug caps anyway so an adapter is needed.
I destroyed 2 old spark plugs for the metal threaded end/shaft but a suitable long machine screw would suffice. I made a slitted collar that slides over/onto the plug nipple, so it pushes on and does not fall off. I welded the collar to the shaft. The unit will now fit the engines spark plug and connect into the bikes oe plug caps. Just make sure you get the length right so it connects into the oe plug caps.
I will check on the car world coil during the day as I cannot remember the part number or exact model vauxhall V6 CDI ign coil, wasted spark twin lead nipple connection, vauxhall Monterey ??
Back later...it's not raining today so must work on the car, the brake lights have stopped working, preying it's not the brake light switch, whole dash off to get to that blighter !
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Post by johnjones on Sept 29, 2021 7:53:09 GMT
Intermotor 12835, they have an on line catalogue.
If you need dimensions/data I will look up and try and post such.
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Post by richard on Sept 29, 2021 8:59:22 GMT
Intermotor 12835, they have an on line catalogue. If you need dimensions/data I will look up and try and post such. ok, thanks |
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Post by andy1kenobe on Sept 29, 2021 10:30:03 GMT
Interesting that about the coil. I have just checked my epc for the V6 Monterey and it does give the part number as 12835 picture below. I keep a look out for one of these to have a fiddle with in the future.  |
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Post by johnjones on Sept 29, 2021 12:18:42 GMT
That's the wee beasty, as said different shape and size to the oe coil but can be situated under the tank in the oe coil fittment area.
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Post by richard on Sept 29, 2021 18:09:26 GMT
Interesting that about the coil. I have just checked my epc for the V6 Monterey and it does give the part number as 12835 picture below. I keep a look out for one of these to have a fiddle with in the future. hello
they seem to sell for about £22 - 5 yr warranty...but no pictures i have come across show the wiring connector... ?
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Post by andy1kenobe on Sept 29, 2021 20:40:02 GMT
Interesting that about the coil. I have just checked my epc for the V6 Monterey and it does give the part number as 12835 picture below. I keep a look out for one of these to have a fiddle with in the future. hello
they seem to sell for about £22 - 5 yr warranty...but no pictures i have come across show the wiring connector... ?
Underneath there are two little slots that make the connections. I reckon a couple of spade connectors will fit. Skip to 4.53 on this video. These coils are fitted to various US cars such as this Olds Cutlass and also Cadillacs, Buicks ... |
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Post by richard on Sept 30, 2021 4:54:40 GMT
hello
thanks for the video, i did wonder where the connections went
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Post by andy1kenobe on Sept 30, 2021 6:27:23 GMT
I did too as I couldn't find an image of the underside so had a quick Google for a video. My thoughts were to look for an American car as the Monterey was not a popular car on our roads.
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