Oil rings

Post by **youngun** » Sun Mar 02, 2008 8:08 pm

Before I go and spend £40 on a complete set of new rings, does anyone know if i can just buy a set of oil rings.....in my ultimate wisdom i managed to break 2 today getting them out of the grooves (Doh!!). Its probably best to replace them anyway, they were completely cagged up with gunge and some horrible scaly rock solid concretion stuff which seems to be on a variety of surfaces in the engine.......

Cheers,
YG

Post by **MoggyTech** » Sun Mar 02, 2008 9:13 pm

You could always phone ESM or BM and see if they are willing to split sets of rings. But if there are caked on carbon bits around the engine, I would be cleaning everything up and replaceing the rings as a matter of course.

Post by **youngun** » Sun Mar 02, 2008 9:18 pm

Thought id get an answer like that....i guess the entire set is only 40 quid!!

Cheers mogytech!!

Post by **bmcecosse** » Sun Mar 02, 2008 10:36 pm

Wow - £40 just for rings ?? Have you priced a set of pistons and rings ? If the ring grooves are worn there is no point fitting rings anyway. You could try some of the Mini places for rings - Minisport/Minispares etc - same bore size as Mini 998. Note - the 998 pistons are no use to you - but the rings will be the correct bore size.

Post by **bigginger** » Sun Mar 02, 2008 10:49 pm

£20 for a 1098, £39.50 for 948, and an eye watering £65 for the 803
a

Post by **IslipMinor** » Mon Mar 03, 2008 12:15 pm

YG,

What size engine do you have?

Post by **youngun** » Mon Mar 03, 2008 7:35 pm

Post by **IslipMinor** » Mon Mar 03, 2008 11:51 pm

Ok, then 998 pistons will not work as the standard bore size is the same as a 948 +0.065" overbore. Good way to go if you need a bore? Can fit the rods as well, and get rid of the clamped little end.

Post by **bmcecosse** » Tue Mar 04, 2008 2:36 pm

If it's a 948 then indeed the upgrade to Mini 998 pistons on that +65 overbore will be worthwhile in the long run. But far better to just source a decent 1098 engine and use that.

Post by **youngun** » Tue Mar 04, 2008 7:58 pm

meh, ive already bought most of the stuff i need for my 948....plus the bores (which are linered) are in excellent condition. Besides, everyone has a damn 1098!

Post by **youngun** » Tue Mar 04, 2008 8:00 pm

Oh and whilst im at it,
Is this worth the asking price? http://morrisminorspares.co.uk/shop/pro ... d2716586bc

Ive heard about it before, but cant remember the general opinion on it!

cheers,
YG

Post by **bigginger** » Tue Mar 04, 2008 8:09 pm

As far as I remember. it was a rather resounding 'no', but I've no personal experience of it.

Post by **bmcecosse** » Tue Mar 04, 2008 8:28 pm

Not used one myself - but i'm sure it's been discussed often and agree - it's a NO. If your bearings are good - and the engine is not suffering piston blow-by - the original 'scroll' seal is fine.

Post by **MoggyTech** » Tue Mar 04, 2008 9:01 pm

Is this worth the asking price?

Not really, involves some precision engineering to fit correctly, and introduces an oil seal that can fail. A scroll seal will never wear out, and will not leak if everything is healthy.

Post by **youngun** » Tue Mar 04, 2008 9:34 pm

Good oh,

I think that some people said that its worth replacing my timing cover with one from a 1098 though...something about a better seal?

YG

Post by **bigginger** » Tue Mar 04, 2008 10:02 pm

Rubber seal at the crank nose, as opposed to cork
a

Post by **bmcecosse** » Wed Mar 05, 2008 8:11 pm

Yes - a much better seal. Of course - if you go for the later Mini cover with bulge in the side then you can fit the timing chain tensioner device from the Mini for quieter running!

Post by **youngun** » Wed Mar 05, 2008 8:44 pm

Blimey, more things to do!