Little/big end play

[Flipatron]

So should there be no play in these or can there be a little 'play'?
Currently stripping my engine to discover what my knocking noise is, sounds like an out of adjustment tappet but the top end is fine.

[Flipatron]

No's my Honda Xr250r, bought it last month and has been fine until a 60 mile trip on Tuesday. Ever since then there's been a loose tappet type noise at all revs.

Here's a video of the play
http://www.youtube.com/watch?v=Znwj3lLy_Zw

Edited by Flipatron on Sunday 20th September 15:45

[Flipatron]

That's the funny thing, the valve gear, rockers and camshaft are in A1 condition?

[Flipatron]

Still not sure if it's within design limits, still trying to find out. also not sure if I can actually split the conrod from the crankshaft.

[Flipatron]

I don't think It's bushed, just runs in the steel. I'll try a new gudgeon pin first, see how much play I get.

[Flipatron]

Pumaracing said:

Flipatron said:

I don't think It's bushed, just runs in the steel. I'll try a new gudgeon pin first, see how much play I get.

So you intend to ignore the good advice you've already had from every person who's posted including myself a race engine builder of high repute and 30 years experience that from the evidence of your video your little end bush is completely shagged beyond any hope of re-use and beyond anything in fact I've even seen in 30 years of doing this?

Makes me wonder why I bother. It was certainly a waste of my time in this instance.

Calm down, thanks for the advice and I fear your solution is the correct one but buying a gudgeon pin and seeing if the play is reduced is a lot simpler and cheap than removing the engine and splitting the case.

[Flipatron]

I hear you, It's either off for a rebuild or I'll buy another engine if I can find one cheap enough.