Hi All
Inching ever closer to finishing the long saga of rebuilding an Ariel Huntmaster engine
Checking the original oil pump out I found it was in poor shape with a lot of pitting on the Mazac body and drive end.
I asked the owner to go and buy a new pump, No stock at SRM and it seems the only pumps available currently are the Wassel Hepolite ones
So he sent off the order and Yesterday the new pump arrived
It had not attracted the Customs people so arrived without paying VAT and or Duty
When I looked at the pump I noticed what looked like a small bit of swarf in one of the oil ways
I got a pick to remove it but it was stuck! Out with a magnifying glass which revealed that the body screw holes
are breaking out into the oil galleries
Now what effect this would have is a
Oil could migrate across from feed to return side or leak from the pressure outlet to the return ?
Measuring against the old pump and another old pump I found the oil galleries are drilled closer than on the originals so intersecting with the screw hole drilling's
I have sent the attached photo to the supplier asking are all the pumps they have in stock the same?
As the pump arrived tax free I am a bit reluctant to return it as the probability of all the pumps being the same and the likelihood of having to pay the tax next time
I am thinking of removing one of the offending screws at a time and covering the screw shank with Dirko (Yamabond) and refitting in a bid to seal across the break throughs ?
Thoughts please Guys?
John