[SEL] Valve guides one more time?

[jbcast at charter.net]

> 
> On a Lister I recently did the valve stems were pitted. I machined them to 
> clean up. The old guides were shot so I removed them and reamed the bores 
> back to round and then made new ones out of soft cast iron. Made them around 
> .001 thou interferance in the new bores and made the ID's a bit of clearance 
> on the valve stems. They seem to be working well. The old ones were also 
> cast iron and they went for 80 years.
> Ray Freeman


> Once again I am considering using modern thin wall bronze guides, but would 
> love to hear how others have handled this. Knurling is not an option for me 
> on this, but might work for others. Any help is appreciated.
 
> Jeff Allen
> Arvada, Colorado USA
> 

Cast iron is supposed to be better than bronze in this case where you have limited lubrication. Bronze is good when fed by continuous lube.
J.B. Castagnos
Belle Rose, LA