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Oil rings
Posted: Sun Mar 02, 2008 8:08 pm
by youngun
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
Posted: Sun Mar 02, 2008 9:13 pm
by MoggyTech
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.
Posted: Sun Mar 02, 2008 9:18 pm
by youngun
Thought id get an answer like that....i guess the entire set is only 40 quid!!
Cheers mogytech!!
Posted: Sun Mar 02, 2008 10:36 pm
by bmcecosse
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.
Posted: Sun Mar 02, 2008 10:49 pm
by bigginger
£20 for a 1098, £39.50 for 948, and an eye watering £65 for the 803
a
Posted: Mon Mar 03, 2008 12:15 pm
by IslipMinor
YG,
What size engine do you have?
Posted: Mon Mar 03, 2008 7:35 pm
by youngun
948!
Posted: Mon Mar 03, 2008 11:51 pm
by IslipMinor
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.
Posted: Tue Mar 04, 2008 2:36 pm
by bmcecosse
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.
Posted: Tue Mar 04, 2008 7:58 pm
by youngun
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!
Posted: Tue Mar 04, 2008 8:00 pm
by youngun
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
Posted: Tue Mar 04, 2008 8:09 pm
by bigginger
As far as I remember. it was a rather resounding 'no', but I've no personal experience of it.
Posted: Tue Mar 04, 2008 8:28 pm
by bmcecosse
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.
Posted: Tue Mar 04, 2008 9:01 pm
by MoggyTech
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.
Posted: Tue Mar 04, 2008 9:34 pm
by youngun
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
Posted: Tue Mar 04, 2008 10:02 pm
by bigginger
Rubber seal at the crank nose, as opposed to cork
a
Posted: Wed Mar 05, 2008 8:11 pm
by bmcecosse
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!
Posted: Wed Mar 05, 2008 8:44 pm
by youngun
Blimey, more things to do!