Category Archives: SU Carburetors

SU Carburetor Rebuild (HD-6)

Recently, I’ve rebuilt a couple pairs of HD-6s from 1959-1962 Jaguar XK 150s.  These carburetors present some unique challenges that I would like to discuss. Advertisements

Posted in SU Carburetors | 4 Comments

MGBrescuepilot Please Contact Me

Today (Sept 1, 2016) I received the following e-mail (below the row of xxx’s) from “” regarding a post that had just been made to this thread:,2566009,3345754#msg-3345754

Posted in SU Carburetors | 2 Comments

SU Carburetor Tuning

Today I will discuss tuning of SU carburetors.  Tuning includes mixture adjustment, idle speed adjustment, and synchronization.  It is assumed that your carbs have been properly rebuilt and the jets centered; if not, stop here, because your carbs are likely … Continue reading

Posted in SU Carburetors | 1 Comment

SU Dashpot Oil Recommendation

I am frequently asked what oil to use in SU dashpots.  To me, the answer is clear: Use Mobil 1 15W-50; nothing else works as well.  Nothing.

Posted in SU Carburetors | 15 Comments

SU Carburetor Rebuild (H-6)

Today’s post is about my recent rebuild of a pair of H-6 carburetors from a Triumph TR3B. Again, the primary purpose of this blog is to teach people about their SUs and to show the types of problems that are … Continue reading

Posted in SU Carburetors | 3 Comments

SU Carburetor Rebuild (H-4)

Reference:,2566009 (The above reference was added 3/10/2014 in the interest of fairness and to provide access to negative comments about this blog.) Today’s post describes a recent rebuild on a pair of SU Type H-4 carburetors.  Although most Type … Continue reading

Posted in SU Carburetors | 20 Comments

SU Carburetor Rebuild (HS-4)

Today I’d like to discuss a pair of HS-4 carburetors that I just rebuilt for a 1965 MGB.

Posted in SU Carburetors | 1 Comment