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Showing results for tags 'flexplate torque converter'.
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I have the BTR out again, I should install it with wingnuts this time... I have a Yella Terra flex plate and an unknown built 'heavy duty' Territory converter. The box has been in and out a few times for various reasons- this time because the crank bolts came loose on the dyno. When I pulled it out the first time (not for loose bolts) I noticed marks on the converter where it has been touching the crank bolts. When assembled there is 1mm clearance between the crank bolt heads and the tc. I am supposing that the converter swells under load sometimes enough to slightly touch the bolt heads. The problem I have is because the bolts have come loose I have decided to try a Mackielec retaining plate. This kit requires the use of a different ARP bolt (203-2802) which has a much taller head than the ARP bolt currently in use. A difference of 4mm - room I don't have. As there would probably be thousands of these kits on Yellaterra flexplates I'm guessing the difference I have is the t/c itself is slightly different. I've measured my t/c spacing or air gap at 3.5mm which is at the lower end of spec (3.2-4.8mm) so I can't space the converter back. I can't machine the crank side of the flexplate as that will affect ring gear to starter engagement. I could machine the area opposite where the bolt heads are but 4mm is a decent slice of a 8mm plate. I could maybe take some off the bolt side of the flexplate and some off the bolt heads themselves... Or I could look at a new converter which would be a shame as this one seems fine (I don't have a stock one to measure against for comparison). Or (just popped into my head) I could use a couple extra engine to trans sandwich plates which would push the trans back in relation to the t/c increasing the air gap which means I could space the t/c back of the bolt heads.... Crikey. I'll include some pics, interested to hear your thoughts guys.
