_Shane_ Posted March 31, 2008 Share Posted March 31, 2008 Lads are these bearing kits any good ? Was looking online and came across a set by ACL package included Connecting Rod Bearing Set Standard Size Crankshaft Main Bearing Set Standard Size Thrust Washer Set Standard Size All delivered for about 100 euros . Pure rubbish or what ? Also what would ye recommend ? Cheers Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 1, 2008 Share Posted April 1, 2008 i looked at these and contacted MVP with regard to one size fits all, they responded in a none comital way and said to "leave it to your engine builder" as thats me i am not bothering, i dont understand how Mr T makes different size bearings to get the optimum fit (my mains and big ends have both 2 different sizes in them) and a manufacturer like ACL only make a one size fits all, their explanation of this is "higher power engines need a bigger clearance" i say bullsh*t, i am buying new stock Toyota or if money is not a problem Power Enterprise make all the correct sizes Quote Link to comment Share on other sites More sharing options...
SimonB Posted April 1, 2008 Share Posted April 1, 2008 Quite right, there are something like 7 standard main bearing sizes and 3 rod bearing sizes. There's no such thing as a standard size bearing. Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted April 1, 2008 Author Share Posted April 1, 2008 will just leave it to engine builder so thanks lads Quote Link to comment Share on other sites More sharing options...
dayosupra Posted April 1, 2008 Share Posted April 1, 2008 Who's Building your engine man?? Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted April 2, 2008 Author Share Posted April 2, 2008 thinking of sending it to SSI up in northern Ireland Quote Link to comment Share on other sites More sharing options...
Nic Posted April 2, 2008 Share Posted April 2, 2008 I'd personally go with either replacement stock bearings or Power Enterprise, both of which are available in range of different sizes http://power-enterprise.co.jp/english/metal/f1_metal.htm Quote Link to comment Share on other sites More sharing options...
dayosupra Posted April 2, 2008 Share Posted April 2, 2008 Ah right what do you think of Martin Tracey in Westmeath??Im ruinning ACL bearings myself good some good feedback on them but engine still has to be finished and mapped!!Livin down waterford where u from yourself??? Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted April 2, 2008 Author Share Posted April 2, 2008 what do they cost nic ? Will i just leave me engine builder take care of these ? @ Dayosupra - I from cork lad, westward in supposed to be good for tuning but im going to get marty to build my supra and then he is gettin some lad brought over from the uk to setup and map the aem Quote Link to comment Share on other sites More sharing options...
dayosupra Posted April 2, 2008 Share Posted April 2, 2008 Ah your only accross the road im ruining a AEM aswel hopin martin will be ok with it??? Quote Link to comment Share on other sites More sharing options...
flyby Posted April 27, 2008 Share Posted April 27, 2008 my engine was rebuld for only 12K miles ago, whit ACL bearings. My engine broke 14 days ago.. Look: Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 27, 2008 Share Posted April 27, 2008 Thomas that looks expensive mate , but what a first class post this is what forums are all about and i feel it completely validates me sticking with stock Toyota bearings, what plans do you have, is you motor a right off, which bearing has gone and do you know what size it should have been Quote Link to comment Share on other sites More sharing options...
flyby Posted April 27, 2008 Share Posted April 27, 2008 Thomas that looks expensive mate , but what a first class post this is what forums are all about and i feel it completely validates me sticking with stock Toyota bearings, what plans do you have, is you motor a right off, which bearing has gone and do you know what size it should have been Well Im talking whit one about a complet engine, that runs, and has a low milaged. I do not think that i want to rebuld this one. This for some one else But i never juse ACL again. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 27, 2008 Share Posted April 27, 2008 The bearing failure you show is absolutely NOTHING to do with the bearings themselves, it would have happened with ones from Mr Toyota, too. Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 28, 2008 Share Posted April 28, 2008 The bearing failure you show is absolutely NOTHING to do with the bearings themselves, it would have happened with ones from Mr Toyota, too. are you talking about the fact the bearing has "spun" in the housing Chris, surely if this is the case would an incorrect clearance on a bearing make that particular bearing more susceptable to failure Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 28, 2008 Share Posted April 28, 2008 I have used thes bearings on many different engines, the failure shown would be caused by one or more of the following. Oil starvation, either a worn pump, or restricted oil feed (maybe too small a cooler plumbing set up?) A previous engine failure and the rods not being round and reused without re sizing or replacing Dirty engine assembly practices. Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 28, 2008 Share Posted April 28, 2008 I have used thes bearings on many different engines, the failure shown would be caused by one or more of the following. Oil starvation, either a worn pump, or restricted oil feed (maybe too small a cooler plumbing set up?) A previous engine failure and the rods not being round and reused without re sizing or replacing Dirty engine assembly practices. how do you address the one size fits all Chris or am i being overly fussy Quote Link to comment Share on other sites More sharing options...
Tom Posted April 28, 2008 Share Posted April 28, 2008 how do you address the one size fits all Chris or am i being overly fussy ACL bearings come in 3 sizes for the supra, not 1 as above posted Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 28, 2008 Share Posted April 28, 2008 ACL bearings come in 3 sizes for the supra, not 1 as above posted. ahhhhh now we're getting somewhere as i was unaware of this, so you can mix and match the bearing sizes in a set i presume Quote Link to comment Share on other sites More sharing options...
Tom Posted April 28, 2008 Share Posted April 28, 2008 I'm not 100% on that as i'm not an engine builder, I just have the ACL bearing catalogue at work I did show this thread and Flyby's one to an engine builder this morning and he said the same as CW as this engine builder also uses ACL bearings in all his builds and has never had a problem with them Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 28, 2008 Share Posted April 28, 2008 I'm not 100% on that as i'm not an engine builder, I just have the ACL bearing catalogue at work cheers for that mate, i think i am still going to stick with Mr T's finest Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 28, 2008 Share Posted April 28, 2008 If you work out the differences in size between the "grades" on MKIV and Skyline RB25 and RB26 engines the spread is tiny and insignificant. I just rely on Plastiguage and have never had an issue. if buying genuine Nissan shells I just go for the biggest thickness for the big ends and the mid size for the mains. Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 28, 2008 Share Posted April 28, 2008 If you work out the differences in size between the "grades" on MKIV and Skyline RB25 and RB26 engines the spread is tiny and insignificant. I just rely on Plastiguage and have never had an issue. if buying genuine Nissan shells I just go for the biggest thickness for the big ends and the mid size for the mains. i accept that works for you Chris but why would a major car manufacturer go to all this trouble to make 6 different bearing sizes, they tend to make life easy on themselves and standardise everything to the extreme, 10 pence extra on a production line costs millions on the end product with the volume they produce, or am i missing something from a performance point of view Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 28, 2008 Share Posted April 28, 2008 I have no idea why they do it, not all performance engine makers do. I have never received any validation for bothering to use the grading, either, unless you have a badly ground crank, or honed block, and the sizes stack up, meaning you need to juggle the sizes. the spread really is minute. On the sort of engines I tend to be building I sometimes err on slightly more clearance than stock, anyway. Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 28, 2008 Share Posted April 28, 2008 I have no idea why they do it, not all performance engine makers do. I have never received any validation for bothering to use the grading, either, unless you have a badly ground crank, or honed block, and the sizes stack up, meaning you need to juggle the sizes. the spread really is minute. On the sort of engines I tend to be building I sometimes err on slightly more clearance than stock, anyway. cheers Chris Quote Link to comment Share on other sites More sharing options...
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