Introduction #
SU Carburetors – Matching the Air Pistons is a must for a tune up. This is something you’ll can to check, and once complete, only needs to be done once.
The carbs came from the factory with the parts all matched. Over time, very possible that you or someone could have had things apart and mismatched the piston and the chambers. This simple check can make a very big difference to performance an operation. This will also help with making sure the fuel/air mixture can be properly adjusted.
The Process & A Caution #
This video shows the process of verifying or getting the best match between the pistons and the suction chambers. If you undertake this be VERY CAREFUL not to drop either part. In the part where the fall is being counted off pay particular attention to John’s thumbs. He has them positioned to make sure the piston cannot fall out completely and hit the floor. Critical, because a drop from this hit will ding and damage them carburetor parts. This would make things even worse than they may have been before.
Hopefully this will enable you to do your own SU Carburetors – Matching the Air Pistons process.
John Twist of University Motors Ltd. is a great resource and supporter of the MG community. His website has a great deal of information available for free. Also, John has created hundreds of videos shared on the University Motors channel on YouTube. some of which are embedded here. Given all the contributions John makes, please consider using the donate button on his website home page if this information has helped you. Also you can use the button provided here.
John Twist Donations via PayPal
Other Materials #
I’ve built this website and spent time on the knowledge base to bring together a lot of information I have collected from around the internet. The intent is making it easy to find rather than having to know about and have skills with search engine query terms to get what you were looking for. Please make use of the knowledge base.
