rincewind23
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| posted on 19/9/12 at 12:14 PM |
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R380 rebuild
Hi all,
Building a locost with a Rover v8 engine from a Disco. Got the engine running with a new microsquirt injection/ignition system, sounds lumpy but
great! Now looking at the gearbox.
It's an R380 from eBay - obviously the bolts don't match the original bellhousing so I dismantled it and swapped in the input shaft from
the original LT77, and the LT77 gear casing so that the box mates with the bellhousing. I managed to align everything (i think) correctly, so the
spools are in the right place, and all the gears engage.
My problem is that without the gearcasing on, when I put it in gear on the bench, I can turn the input shaft and get the output to turn. When I fit
the gearcasing, I can't get it to turn.
Is there anything obvious to check that I could have done wrong? It might not be obvious (ha!) but this is the first time I've dismantled a
gearbox..
Cheers,
KEv.
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scudderfish
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| posted on 19/9/12 at 12:30 PM |
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I can't answer your question, but you might want to post it here http://www.v8forum.co.uk/forum/index.php as well.
Regards,
Dave
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rincewind23
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| posted on 19/9/12 at 12:45 PM |
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Thanks Dave, I'll do that.
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rincewind23
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| posted on 20/9/12 at 06:43 PM |
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No reply at the v8 forum, but I looked at the LT77 overhaul manual (since the gearcase is from an LT77) and there's a section about shimming the
mainshaft based on the gap behind the front cover gasket. When I removed the front cover, bolted the gear case and reattached the front cover I can
get it down to about a 1mm gap before the shaft seizes. I'm off to get a gasket tomorrow and follow the shimming instructions..
All I need to do now is find an R380 remote gear selector mechanism, which apparently are as rare as hen's teeth since I can't find one
anywhere!
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