I have a 1976 sleekcraft 19' tunnel jet boat. Solid boat with bottom freshly done by previous owner, I’m prepping top for paint now.
Mounting the engine to the hull looks harder than I thought. Stringers are enclosed due to tunnel location on each side of stringer.
The last engine mounts had bolts going through the hull and into the tunnel area. (now fiberglassed over when they painted the bottom. I don’t have any idea how it came from factory. I have to start fresh and looking for ideas. Engine will be mild, somewhere around 400 hp with Berkeley jet.
Does anyone have pictures on how they mounted their engine mounts to the hull in tunnel boats, or boats with similar restrictions? suggestions, lessons learned? Special hardware you bought? Thanks!!
The way they mounted the engine in this boat was by using side mounts on the engine block with a bellhousing that fit on the front of the pump. The problem is that they used lag botls to hold the side mounts to the hull. Not a good idea.Spend a little time and install a set of stringers in the engine well and this will solve your problem.
there was a thread about the mounts of a sleekcraft tunnel a few weeks ago but I cant remember the name. If you pm smokinlowriderss or shotgun 19 I'm sure they can help.I think they were posting pics in the thread.
Tough time here with a death in the family. thanks for taking the time to help!
Very nice. Since I'm putting in a low hp engine (under 400 hp) I agree, using a plate mounted to the existing horizontal frame with multiple recessed screws in the tunnel area, spreading the load along a much longer area horizontaly then the two resessed lag bolts the factory designed should work. In my boat, the wood is solid, no rot or fiberglass damage over the years. just need to get that type of mount setup for an olds 455. should be the same angle right? Down the road I have a BBC I'll rebuild (when I can get the time) and go for much bigger power. I have zero experience driving a tunnel, I'm truly excited!