Suprakeith Posted May 20, 2017 Share Posted May 20, 2017 Just after bit of advice please, I think I know answer anyway but just want it confirmed before order new crank. I removed crank while ago and it dipped in rust protection and wrapped it up, but today doing some work in garage I slipped while using angle grinder and caught the splines on crank. I 99% sure it's now scrap but just want it confirmed please. Have attached few pictures of damage Quote Link to comment Share on other sites More sharing options...
evinX Posted May 20, 2017 Share Posted May 20, 2017 Bin it. You hit the teeth. Itll just shear there. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted May 20, 2017 Share Posted May 20, 2017 Sorry if I'm being stupid as this is something I dont know much about, but isn t that toothed part the oil gear drive? And isn t it a separate peice to the actual crankshaft? As in it can be removed and replaced. Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted May 20, 2017 Share Posted May 20, 2017 Sorry if I'm being stupid as this is something I dont know much about, but isn t that toothed part the oil gear drive? And isn t it a separate peice to the actual crankshaft? As in it can be removed and replaced. Yep, you can buy that part seperately, http://www.briancrower.com/makes/toyota/2jzgte_misc.shtml Quote Link to comment Share on other sites More sharing options...
ManwithSupra Posted May 20, 2017 Share Posted May 20, 2017 very lucky... Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 20, 2017 Author Share Posted May 20, 2017 Yep, you can buy that part seperately, http://www.briancrower.com/makes/toyota/2jzgte_misc.shtml That's wicked thank you for that, I guess the best way to remove old part is buy using heat? Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted May 20, 2017 Share Posted May 20, 2017 That's wicked thank you for that, I guess the best way to remove old part is buy using heat? I think so, never tried it personally, job for a decent machine shop I'd say. Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 20, 2017 Author Share Posted May 20, 2017 I think so, never tried it personally, job for a decent machine shop I'd say. I will give it go using bit of heat tomorrow and it no joy will take it to work and use one of the lathes to remove as work in CNC machine shop Quote Link to comment Share on other sites More sharing options...
Style Posted May 20, 2017 Share Posted May 20, 2017 You'll need to heat to get the new one on as well so maybe best to get a new gear before you take it to a machinist and just get them to swap them over. Lucky break Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted May 21, 2017 Share Posted May 21, 2017 You'll probably need to freeze the crank nose too to fit the new one Quote Link to comment Share on other sites More sharing options...
Dnk Posted May 21, 2017 Share Posted May 21, 2017 Bin it. You hit the teeth. Itll just shear there. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 22, 2017 Share Posted May 22, 2017 The ONLY way you will get the pump drive off is to turn it off nearly all the way through on a big lathe. You will have to put the crank in a freezer overnight or for 24 hours and the new drive needs heating to about 400C before slipping them together. If the drive shrinks before it's fully seated you're in the whatsit... I'd be interested if these drives are still available and what the material and machining quality is like, please post here if you go that route. Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 22, 2017 Author Share Posted May 22, 2017 Thanks for all the information guys, I took engine block to machine shop and asked about crank and they have the faculties to remove all oil pump gear and fit new one. So I have ordered new briancrower oil pump gear thanks to Paul Whifbitz for putting link up. When the oil pump gear turns up will take crank to machine shop and at same time of replacing oil pump gear they will check crank balance and Journal sizes and give it a polish or regrind if needed Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 22, 2017 Share Posted May 22, 2017 Err, that's a bit arse about face.... Take it to be checked for size, straightness and other damage BEFORE ordering a gear No point messin' about with a scrapper. You don't want a ground crank in a hipo motor. not with good stock size ones easily available. Quote Link to comment Share on other sites More sharing options...
Dnk Posted May 22, 2017 Share Posted May 22, 2017 Err, that's a bit arse about face.... Take it to be checked for size, straightness and other damage BEFORE ordering a gear No point messin' about with a scrapper. You don't want a ground crank in a hipo motor. not with good stock size ones easily available. Can't argue with that Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 22, 2017 Author Share Posted May 22, 2017 (edited) I am 99% sure that the crank is fine and no sighs of score marks at all and the engine was running perfect before rebuild. Plus all the bearings were is good condition when removed the, all I having done to the block is a good clean and a hone as the bores are in good condition Edited May 22, 2017 by Suprakeith (see edit history) Quote Link to comment Share on other sites More sharing options...
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