Through the seller motormanfuelinjector on eBay.com l bought a set of refurbished injectors with new seals from the US in March this year.
https://www.ebay.co.uk/itm/293119879400 ... Sw3bNdAm~C
They have been on the shelf inside my garage until today. So decided to swap out the old and in with the new.
To my surprise l found they are not exact replacements. They are shorter. So when mounted to the fixing plate and bolted to the inlet manifold they are loose and can be rattled back and forth.
Old on the left. New on right. Shorter by 5mm

Close. But no cigar!

On contacting the seller he claims they are direct replacements for the 2.1 vanagon and never had any problems like this before. Same injectors for DJ or MV or SS apparently.
He then suggests using two seals on the pintle. Old one first and then the new seal. I
I replied surely this could be dangerous as it reduces how deep the the injector sits inside the manifold to about 5mm instead of a healthy 10mm.
His answer....
"I don't see any difference in length between the two injectors.
you can remove the lower grommet from your original injector and place it on the new injector, then the new grommet
this will move the grommet down deeper into the port.
if the grommet doesn't seal properly in the port then a vacuum leak will occur"......................and........................................ "The small distance will have no effect on compression or power generated. Since the amount of air, fuel, and displacement is unchanged. Once again, fuel cannot escape the port because of the vacuum created during the intake cycle. "
I have deep reservations using the set up he suggests.
Your views please?
Regards
Stuart