I've had a bit of a slack morning at work, so I've put that time to good use, doing more research into the XS1B.
I've finally found out exactly what the difference is between XS1/XS1B air filter boxes and the XS2/TX650 items.
The later boxes are smaller, so '70/'71 elements can't fit into the '72/'73 boxes, but the reverse may be possible.
Don't know for sure yet.
Early elements are 256-14451-00, the later ones 306-14451-00, some dealers are selling the later types as one size fits all.
A bit naughty really.
I also thought about ripping out the old paper element core, and replacing it with a more modern, washable foam element.
Then it turns out someone has already done that with success.
A quick check on eBay reveals loads of differnt types of air filter foam available relatively cheaply - and not a difficult thing to make.
But then I'm thinking a bit deeper about this - how do I know the level of filtration is going to be adequate ?
Is there an industry standard for air filter foam ?
Some of the stuff on eBay looks like it could be trimmings from a furniture factory.
I've finally found out exactly what the difference is between XS1/XS1B air filter boxes and the XS2/TX650 items.
The later boxes are smaller, so '70/'71 elements can't fit into the '72/'73 boxes, but the reverse may be possible.
Don't know for sure yet.
Early elements are 256-14451-00, the later ones 306-14451-00, some dealers are selling the later types as one size fits all.
A bit naughty really.
I also thought about ripping out the old paper element core, and replacing it with a more modern, washable foam element.
Then it turns out someone has already done that with success.
A quick check on eBay reveals loads of differnt types of air filter foam available relatively cheaply - and not a difficult thing to make.
But then I'm thinking a bit deeper about this - how do I know the level of filtration is going to be adequate ?
Is there an industry standard for air filter foam ?
Some of the stuff on eBay looks like it could be trimmings from a furniture factory.