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Kirkham Motorsports

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  #1 (permalink)  
Old 06-07-2013, 12:50 AM
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Originally Posted by Luce View Post
I did my first oil change a few weeks ago after my cam replacement. I had a little bit of metal on the magnetic drain plugs and I had that OH $hit not again feeling where you want to loosen a fuel fitting and throw a lit match at it.

So I gathered my courage and pulled the dizzy. It must have been the last few bits of the old gear floating around. I saved the filter, but haven't cut it open yet. It's so messy. I'll do it sometime.

On the up side, the gear was absolutely drenched and dripping with oil, and both gears have shiny mating surfaces, but no signs of missing material, so I think the lubing channels are open and functioning. It sure runs good! The new cam still has plenty of lope for me, but better vacuum at idle and pulls like a train all the way up to 6200 where I set the limiter.

On my motor, even if Ford offered to repair it if I removed, crated, shipped and reinstalled, I would say no thanks. Changing the cam out was much easier that removing and reinstalling the engine would have been, and I know those monkeys didn;t touch it! If I just let them fix it, I don't think I would be able to drive the car again for fear of being stranded somewhere.

Catch the problems before they go catastrophic and you'll be OK. It has what looks like good short block parts. I haven't put enough miles on it yet to comment on oil consumption, but it doesn't smoke enough to embarrass me, so the oil consumption isn't a problem for me.
We droped the sump and found no metal,i was lucky we nipped it early as the car gave me no sighns of what was happening, it was just my mechanic thought it was strange he could not set timing properly other than that the car felt fine, but this was a ticking time bomb.
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Old 06-07-2013, 05:40 AM
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Cobra Make, Engine: Lone Star with IRS, 427W with megasquirt, T56 magnum
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Mine is megasquirted, and I was triggering off the dizzy and controlling fuel and spark. As I tuned and drove, it would seem better, then worse, better then worse. I was advised that triggering off the dizzy with the centrifugal advance still active ( I was trying to use MS to fudge in a little vacuum advance, but let the dizzy do the mechanical) would wreak havoc on the timing prediction algorithm.

So I then added a trigger wheel on the crank that masked the problem for another 500 miles, until the dizzy was jumping around enough to hit the wrong cylinder at high RPMs. I scratched my head over this one for another 100 miles until it jumped time and wouldn't start.

I lost the entire gear in the pan. I replaced the oil pump, but after disassembling the old one, it looked fine with only a tiny minor mark here and there. I never saw a drop in oil pressure so I guess the bearings are OK.

It's better to fix it and move on... just share your experience and help dink their market share. Honestly, the real problem is in the documentation... or lack of. Had the engine came with a build sheet, I would not have changed the iron gear that came on the new MDS dizzy for a steel one and all would be well. Instead, 2 months after my engine was delivered, I had to look on Ford Racing's website and see somewhere "billet roller cam"
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Old 06-07-2013, 06:42 AM
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Quote:
Originally Posted by Luce View Post
Mine is megasquirted, and I was triggering off the dizzy and controlling fuel and spark. As I tuned and drove, it would seem better, then worse, better then worse. I was advised that triggering off the dizzy with the centrifugal advance still active ( I was trying to use MS to fudge in a little vacuum advance, but let the dizzy do the mechanical) would wreak havoc on the timing prediction algorithm.

So I then added a trigger wheel on the crank that masked the problem for another 500 miles, until the dizzy was jumping around enough to hit the wrong cylinder at high RPMs. I scratched my head over this one for another 100 miles until it jumped time and wouldn't start.

I lost the entire gear in the pan. I replaced the oil pump, but after disassembling the old one, it looked fine with only a tiny minor mark here and there. I never saw a drop in oil pressure so I guess the bearings are OK.

It's better to fix it and move on... just share your experience and help dink their market share. Honestly, the real problem is in the documentation... or lack of. Had the engine came with a build sheet, I would not have changed the iron gear that came on the new MDS dizzy for a steel one and all would be well. Instead, 2 months after my engine was delivered, I had to look on Ford Racing's website and see somewhere "billet roller cam"
I took no chances, I replaced the oil pump there not that expensive and not worth taking the risk, I replaced the lifters as well, blykins supplied me with the cam , lifters and new dizzy gear, here is a pic of my pony
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