Join Date: Aug 2010
Thanked 0 Times in 0 Posts
Rep Power: 0
Temperamental Westerbeke Four-91: fuel filter assembly and near runaway status
If anyone has any experience with temperamental Westerbeke engines, namely the late '70's Four-91, we could use some help.
1. We broke the secondary fuel filter assembly and order a new one. Turns out Westerbeke superseded the part with a slightly different fuel filter assembly. The head has the same arrows and ports, but the labeling is backwards and the fuel filter is different. We aren't sure what to do about this and we are wondering if anyone has run into this problem. For reference, the part we are referring to is the Westerbeke 19509 which has superseded Westerbeke 14777 that was originally on the engine.
2. Even with the screwy fuel filters, we did manage to get the engine running. Now the major problem is that it starts at a high idle (around 2,000 rpms) and then quickly, very quickly, ramps up to its max. We can stop it with the fuel cutoff, but each time we restart it ramps up quicker. We aren't sure if this has anything to do with the new fuel filter setup, but we did have the older filter assembly off for a week and had to do some major bleeding and cranking to get the engine started.
Help/advice is greatly needed as the snow line is dropping down towards sea level every day and we need to finish winterizing.