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Just came across these when begining to assemble a customers car!
The coating is gone off the end of the shell and the whole shell was delaminating!!
I have never come accross this before so if anyone is buing/fitting a set make sure you check them all fully.
There was no damage to the box or the plastic wrap on these either.:eek:
http://i174.photobucket.com/albums/w.../DSCF10447.jpg
What have ACL said about it??
Nothing yet, Only discovered it yesterday evening.
The customer supplied the parts so he is getting onto the crowd he got them off and acl themselves..
No quality control?
ACL are going bust so that probably why.
Robbie
Quote:
Originally Posted by robbie@tdp.ie
I dont know why, but that made me giggle. They must not be arsed putting in the effort for there final stint! Or else this is the reason they are going bust...but never heard of problems like this?
I heard that alright, I believe some one in the US wants to buy the engine bearing part of the business though.Quote:
Originally Posted by robbie@tdp.ie
Who else would you use?
wat do they use in japland??
We are testing another brand of bearings at the moment. It's a pity as the ACL are good bearings. Unfortunatuly the cosworth ones have the wrong oil clearance. I do have a good supply of acl for engines we are building for our customers.Quote:
Originally Posted by nissan_doctor
We have opened engines from Top secret and endless and they either use cal or nismo. The problem with nismo is you have to grade them and ther are 3 times the price.Quote:
Originally Posted by jdmjimmy
Robbie
Quote:
Originally Posted by robbie@tdp.ie
I haven't used Cosworth one at all yet.. whats the issue with them? too much or too little clearance?
Well if this guy has no luck with the place he got them I'll send him your way.
Would you let me know what ones your testing if they work out ok?
mate off mine works for proenginebuilders in au he knows his stuff about all racing parts. and the best shells are from orginal manufactures. even if you look at a standard bearing compeard to a race their is a full ring oil track compitions dont only have a half oil way track. + race ones have one stage off tempering taken out off the construction prosses. witch result in higher temp riseing and shorting the life off the oil. standard nissan bearing are the best in his opinin. acl is a spurious part after all. tomei engine builers use orginal bearing!!!
Quote:
Originally Posted by nicko
But Tomei sell their own bearings, so do they say that standard are better then theirs?
Any ACL bearings I've used have idelntical design to the Nissan items, In fact the ACL main bearings for the RB have an extra oil track on the lower shells that Nissan ones don't have.
ACL are well proven at this stage.
Spurious simply means they aren't supplied by the car manufacturer, it has nothing to do with who they are made by or their quality.
i agree acl are proven i have them in my engines never any probs. you know yourself like a competition clutchs most off them are normal pressure plates painted up this makes it a competition this is well known. and most off the time their exiddy clutch at the end off the day. same goes for bearing. anyhow what are you going to do with you acl bearings once the packageing is broke theirs no come back . but thats a bit more serious?
The tomei bearings are made by nissan, but branded as tomei and nismo. The injectors are also the same units.
On another note, i dont see how quality control didnt catch that shell, jesus thats poor. Any word back from them yet paul?
Quote:
Originally Posted by slammedmind
But thats my point about spurious parts. Nissan only assemble cars, they don't make parts. The 'nissan' injectors are made by unisia jecs which Nissan do have a share in but so to Bosch and others. The bearings will be made for Nissan/nismo etc by a different company too.
Haven't heard anything back from him yet though..
Thats crazy,and its hard to belive there going bust when they seem to be such a popular used bearing,most engine rebuilds i have come across have used acl bearings,p.s...if them bearings are for a skyline and he has no luck with getting a replacment set,i have a brand new full set there that i wont be useing!
could explain why i go through so many bottom ends.... :D:D:D
SR or 4A??????Quote:
Originally Posted by larry kehoe
I still havin heard anything off ACL last i heard your man was gettin onto them hopefully hear back mon, can the guys who offered me bearings pm me with prices plse, and these are big ends the mains are perfect
ive heard of a few people that have used acl bearings in different types of cars and have gone back to using oem bearings...
doesn't say much for acl
4age... sr is never really under any kind of load. even in tullow where it concrete it just purr`s no hard throttle to slide.Quote:
Originally Posted by AE86-20v
I'll jump on the wagon too and just confirm what nicko said. I saw when someone posted results with oem and aftermarket bearings.Quote:
Originally Posted by nicko
The difference was that the oem bearings were wearing gradually. The a/m ones were delaminating (the cheaper, the worse).
I've had limited experience with rebuilds (just did a couple) but it's a FACT that production tolerances for oem are much tighter. I had scandalous example once where the shaft wouldn't spin FFS. Either grind was shit or bearings shit, I only know that I was 300 euro short and it did spin in new bearings.
Hats off guys for taking the risk and entering a minefield of engine rebuilding.
Quote:
Originally Posted by Arnie
Its not a minefeild if its done properly. If you couldn't turn the crank after assembling an engine, thats because you didn't take measurements from the crank, journals and bearing shells to check your clearances or else the caps were over tightened.
The crank was measured in the shop, the bearings were made especially for it (custom). When bearings were put in and lubricated, I put in the shaft to check
if all is ok before going further. It was obvious that something went wrong.
Quote:
Originally Posted by Arnie
So it was nothing to do with acl or any mas produced bearings..:rolleyes:
god that looks like it was spun
Ive seen a few bad ACL bearings...Also make sure what it says on the box matches whats inside it...:P