You are in luck. I' am just finishing this project
on my 4-107.
2 words - Teleflex Marine
I've attached the brochure for the Amega Series. I made my own panel by laminating a .25" ply wood
board and making a frame. It was not hard to do. All the gauges are straight forward oil, water
, amps, hour meter. The tach is a different matter. The Perkins
has a take off for a mechanical tach cable. It comes out of the block just behiind and below the alterantor. You use a pulse generator
(Signalflex) to count the rmps and send it to the tach. There are some tricks you need to know to make this work
on the 4-108. The Pulse generator
is too large to attache directly to the mechanical take off. You will need a short piece (4") of the cable to make it work
I have a tech paper from teleflex reviewing all the gauges and how they are wired, but it is too big to post. PM me with your email
address and I will send you everything I've got. I also added an alarm
for low oil/overheating. I'll be happy to share. Review the papers when you get them, then we can discuss any questions you have.