Owen_1987

As this seems like a fairly common thing I would like to understand it a bit more. Hopefully it will be helpful to other people at the same time.

I understand that the primary cause for the big end bearings to fail is due to a low oil level (resulting in low or no oil pressure). Obviously there will be other causes but this seems to be the most common. This hasn't happened to me before so from what I have researched, the dreaded noise sounds like 2 marbles hitting together (if anyone has a better description please feel free to correct). Also, I would imagine that once they are damaged the noise will be constant (and also quite loud), so will not appear/disappear depending on engine temp

Has anyone had any symptoms of the big ends going (i.e the noise starting quite and getting progressively louder) or do they just let go without any warning and that's it?

Any other information or insight into this would be very interesting from people that this has happened to

Ultra_Nexus

I had my big ends go on an old D16Z6.




It's a noise that gets louder with revs and it will sound extremely clattery, not tappety.

http://www.youtube.com/watch?v=LA7euxWaqxs

A good represenation

RichwiththeS2000

How to stop them failing?

zzkamikazezz

If doing track work then a baffled sump is recommended, you could buy one and bolt it on from the likes of J's, Spoon, Mugen or buy one of the plates sold and have it welded in, tegiwa do them:
http://www.tegiwaimports.com/tegiwa-...000-f20c-3487/

This isn't going to do much for a normal road car though as the cornering forces won't be large enough to cause the oil to collect away from the oil pickup leaving it exposed.

gbduo

Is it that common? I don't think many people have had their big ends go have they??

jimmyb1978

I'm one of them that's its happend to courtesy of an poorly fitted oil filter which fell off 10 mins after buying the car!!!!

S2000mikey

I bet it's statistically insignificant. And like jimmyb1978 said, it's mostly going to be down to user error.

e130dan

After seing this I checked my oil and it needed a little top up. So thanks

TangoVTEC

I wouldn't say a baffled sump/weld in plate would be needed on any S2 not running slicks, keeping good oil in at the correct level would be enough for normal road/occasional track users.

However, the weld in plates are a cost effective means of getting peace of mind, so why not eh. I did. Just make sure your chosen welder doesn't have their knuckles dragging on the floor!

Owen_1987

After re-reading it I agree, "fairly common" probably isn't the best description