Engine Races on Startup
Prior to work car ran perfectly with new exhaust but leak at manifold. I removed the twin SU carbs (new 30,000 miles ago) and manifolds a couple of weeks ago to replace the exhaust manifold (stripped studs). Since pollution control was removed years ago I decided to go with the earlier intake manifold which appears to be in good condition. Reassembled using gasket sealer only on the manifolds. All additional gaskets all accounted for. Reassembled all and have double checked throttle linkage and vacuum lines and can find no issue there. Oil had leaked from carb dampers on the bench so replenished. Starting the engine it immediately jumps to 3,000 rpm before I can shut it off.
70 views