Cylinder Head Oil Metering Jets.

JohnR · Post by **JohnR** » Tue Feb 15, 2005 7:55 pm

Oil metering jets were discontinued on the twins in 1959 and reintroduced in 1961. I am condidering fitting to my 1959 G12. can anyone advise on the pro's and con's of such action. also would it help to have a "half way house" of say using a 1/16 metering hole rather than the 1/32. Has anyone else found that the metering jets as supplied by the club are too small in that they just drop into the head.

Eric · Post by **Eric** » Wed Feb 16, 2005 6:07 pm

There is always the possibility the holes in the head are too big.

JohnR · Post by **JohnR** » Fri Feb 18, 2005 1:29 pm

Hi Eric. I take your point, however the jets are too small for either of my pairs of heads, also local club members have experienced the same problem with a 1960 pair of heads and a 1962 pair.

Duncan · Post by **Duncan** » Fri Feb 18, 2005 10:46 pm

John

My understanding is that the jets need the gentle application of a centre punch to swage them out slightly before being punched into place, perhaps an expert could explain better.