5.7 GI with DP stern drive problem

[Tom Krebs]

I have a 1994 Crownline 196BR with a Volvo 5.7 GI with a "DP" stern drive and through hull exhaust. It starts and runs/idles great with the drive and trim all the way up. When I lower the drive and trim, it stalls. It will not start with the drive down. If I raise it all the way back up, it fires right up and will idle great. Why is it doing this? I can't figure it out!!!! This is in neutral and/or in gear.

 

[muc]

Your trim sending unit is pluged into the shift interrupt?

 

[Tom Krebs]

Where would that be located? My first boat with an outdrive...

 

[muc]

~~Hard to describe when I don’t know what engine and drive you have, if you post a serial number I can look for a picture.

 

[Tom Krebs]

It's a 1994 5.7 Volvo Penta "GIPMDA" 250hp with a penta "DP" stern drive. Motor SN# 4110112576

 

[muc]

~~You have a DP-C1 outdrive and a DP-S transom shield. So I don’t think that setup had provisions for shift interrupt if it was used as a MerCruiser Alpha replacement.
Maybe you can watch in the engine compartment while somebody raises and lowers the drive to see if wires are moving?