Mikey Bikey's Scimega

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Post by Oaksey » Fri Aug 02, 2019 2:59 pm

Lovely stuff Mike. Can't wait to see you try your best to break it :)


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Post by MikeyBikey » Sun Aug 04, 2019 11:42 am

Morning,

All wiring and dash reconnected and looking good except...

when I press the starter switch the starter clicks but all the lights / indicators come on (glowing)

so clearly its earthing through that circuit somehow but try as I might I can't locate it.

I've removed every fuse and disconnected just about everything i can but no change.

Engine is earthed to the chassis through the existing thick braided cable that is on our passenger side although omega starter is on the now on the driver side so the omega starter does not have a dedicated earth, (as the original essex would have). I'm assuming bolted to the bellhousing is sufficient ?


any ideas please ?


Is we sideways yet...

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Post by GeoffTE » Sun Aug 04, 2019 1:07 pm

Lovely work Mike, well done. Personally I wouldnt rely on motor to bell housing for the earth. You've nothing to lose and everything to gain by connecting the earth of the motor directly to the chassis. Go on give it a go, you know it makes sense :D :D


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Post by scimjim » Sun Aug 04, 2019 4:14 pm

You have a starter switch - presumably with a relay too? Where is the earth for that taken from?


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Post by efi_sprintgte » Sun Aug 04, 2019 4:17 pm

For testing purposes just ground it using a jump lead


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Post by philhoward » Sun Aug 04, 2019 6:07 pm

I found mine needed a pristine earth - go battery to engine block (like the Omega was) if you can but mine was in the boot, so just had to clean up the earths (battery to fuel tank mounting bolt was 35mm cable, chassis to engine was 50mm and make its definitely clean steel under the crimp).

As JC says, prove it with a jump lead.


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Post by MikeyBikey » Sun Aug 04, 2019 9:18 pm

Thanks all, found it and it was a combination of the above.I have a robust dedicated chassis cable to the battery, over and above the normal earths/ battery cable. Only it wasn’t connecting very well, not enough for the starter. It’s been like that all along, only the myriad of earths connecting the essex engine to chassis than chassis components had masked the problem. As I’d stripped everything back to the bare minimum, hence the clean look, it was trying to earth through the one single wire left connected to the chassis, other than this faulty dedicated cable. This other wire was of course the earth for the side lights so the starter was earthing through the lighting system.

I’d been using a light bulb to test the circuitry only I’d earthed the light bulb at the battery, not the chassis so again, inadvertently circumnavigating the problem.

So that’s now sorted, and all the dash is working. I’m just trying to fathom out how I wired the ecu. It’s been so long I can’t bleddy remember a thing and of course I didn’t write anything down..... :roll:


Is we sideways yet...

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Post by MikeyBikey » Wed Aug 07, 2019 9:37 pm

So all connected then turned the starter and boy, a horrible noise from the gearbox. (no propshaft on yet. )

Try lots of different scenarios including in / out of gear turning from the back and I don't think its the gearbox. So then I think Poo must be the bespoke flywheel / clutch / pressure plate somehow buggered up. I'm not panicking but thinking :shock: , have to take the engine and box out..... and dismantle all the water, lectrics, ancilliaries etc etc :(

But a few sleeps and I had an idea. Removed driver wheel, engine mount, alternator, starter and poke around with the back of the flywheel.

Then I see the bolts holding the pressure plate to the flywheel are slightly proud and scored.
20190807_181014.jpg
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I grind them all flat then test and replaced starter
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20190807_181226.jpg (177.47 KiB) Viewed 459 times
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Reeeesult no noise. :D :D :D :D :D Clearly the longer bolt was just fouling the engine.

So then spent two hours reassembling what took 10 mins to take apart....


still well pleased


Is we sideways yet...

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Post by Dcrosby13 » Wed Aug 07, 2019 10:33 pm

Great work dude but how are you going to remove the pressure plate if you have removed the head from the bolt?


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Post by rkclodhopper » Wed Aug 07, 2019 11:23 pm

He didn't remove the head just the tail of the slightly overlong bolts. Go for it Mikey your near the end now.

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Post by barry_bryan » Thu Aug 08, 2019 11:40 am

keep at it Mikey you are doing great, I am well impressed good luck Baz


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Post by CNHSS1 » Thu Aug 08, 2019 12:26 pm

Is it gonna make Curbs Mike?


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Post by Old and Slow » Thu Aug 08, 2019 1:05 pm

I was wondering; do you need to stick a magnet in there (temporarily of course) to pick up the results of grinding, to minimise potential clutch wear?


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Post by philhoward » Thu Aug 08, 2019 1:07 pm

It's on the back side of the flywheel so should be fine?


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Post by philhoward » Thu Aug 08, 2019 1:08 pm

Oh - and as for clutch wear...have you ever seen Mikey driving? :lol:


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