21-01-2020, 09:32 PM
Hi Simon
If you contact Burlen www.burlen.co.uk you should be able to get one of there SU Parts & Specification Catalogues which in addition to the info in the link you posted also has all the parts they produce etc.
Having checked the carbs in the photos I posted I belive they are are as follows.
1 photo OM 1” which appears to fit the manifold with the holes aligned
2 photo HV2 1 1/8” which need the holes adjusted to fit well also the manifold was enlarged
3 photo H2 1 1/4 with adaptor
Re the dates if you want a period carb then they are dated as follows
1929 HV type introduced
1931 OM type introduced
1937 H type introduced
1958 HS type introduced
The size measured on engine side of the carb they are available as follows
1” OM and HV1
1 1/8” H1, HV2
1 1/4” H2, HV3, HS2
The OM HV and H are hard to find, but HS2 are very common.
The above covers I believe the most common types on A7’s.
If you contact Burlen www.burlen.co.uk you should be able to get one of there SU Parts & Specification Catalogues which in addition to the info in the link you posted also has all the parts they produce etc.
Having checked the carbs in the photos I posted I belive they are are as follows.
1 photo OM 1” which appears to fit the manifold with the holes aligned
2 photo HV2 1 1/8” which need the holes adjusted to fit well also the manifold was enlarged
3 photo H2 1 1/4 with adaptor
Re the dates if you want a period carb then they are dated as follows
1929 HV type introduced
1931 OM type introduced
1937 H type introduced
1958 HS type introduced
The size measured on engine side of the carb they are available as follows
1” OM and HV1
1 1/8” H1, HV2
1 1/4” H2, HV3, HS2
The OM HV and H are hard to find, but HS2 are very common.
The above covers I believe the most common types on A7’s.