valve stem seals

Discuss mechanical problems here.
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
cloud
Minor Friendly
Posts: 37
Joined: Sun Dec 06, 2009 11:29 pm
MMOC Member: No

valve stem seals

Post by cloud »

I am going to be replacing the valve stem seals on my 948 soon. Can anyone tell me the size they are for the cap or bucket type seal (they are called umbrella seals here). I would like to get them ahead of time so if any one has the diameter of the valve stem that would be helpful as auto part stores around here do not have listings for this seal, they need a size.
Thanks.
[sig]10879[/sig]Martin Cooke
Higganum, CT
USA

My other '58
Declan_Burns
Minor Legend
Posts: 1958
Joined: Wed Apr 18, 2007 7:32 am
Location: Düsseldorf, Germany
MMOC Member: No

Re: valve stem seals

Post by Declan_Burns »

Cloud,
Has been discussed on here recently with some excellent photos to explain it all.
http://www.mmoc.org.uk/viewtopic.php?f=4&t=32132
Regards


Regards
Declan
alex_holden
Minor Legend
Posts: 3798
Joined: Tue Jul 25, 2006 9:46 am
Location: Burnley
MMOC Member: No

Re: valve stem seals

Post by alex_holden »

I've just been out and measured a spare 1098 (12G202) head. I think the 948 head must be the same because ESM sell the same guides for both engines. The valve stem is 0.280" and the outer dia of the valve guide is 0.470".
ImageImage
Alex Holden - http://www.alexholden.net/
If it doesn't work, you're not hitting it with a big enough hammer.
kofer
Newbie
Posts: 1
Joined: Thu Jul 22, 2010 7:27 pm
MMOC Member: No

Re: valve stem seals

Post by kofer »

Hi,
I'm new here and I need your help to fix my Morris Minor. I'm not from UK, sorry for my english.

I have a 1098 (12G202) head and I want to replace the valve stem seals. I bought a full engine rebuild gasket kit from ESM including valve stem seals, but they don't fit, they have smaller diameter. I used lubricant but after a stronger try they cut...
The diameter of the valve for the seal is 0.215".

Image

Do you know where can I find the right valve stem seals? Any help?
Thanks!
bmcecosse
Minor Maniac
Posts: 46561
Joined: Wed Feb 16, 2005 11:24 pm
Location: ML9
MMOC Member: No

Re: valve stem seals

Post by bmcecosse »

Welcome to the forum! Just use little O rings, because that's all they are - nothing special! But the ones in the kit should have fitted - they just slide over with a bit of oil.
ImageImage
Image
Post Reply