Drain plugs on 1993 Volvo penta 740B -

[saskflyer]

Have misplaced the drain plugs on the block- also need to retap one of the holes so need to know tap size
Thanks

 

[alldodge]

Should be 1/4 NPT

 

[Bt Doctur]

Can also install the mercruiser type with the blue plug

 

[Scott Danforth]

block are 1/4" NPT. the exhaust manifold ports are 3/4" NPT

 

[saskflyer]

Should be 1/4 NPT

Thanks

 

[saskflyer]

block are 1/4" NPT. the exhaust manifold ports are 3/4" NPT

Thanks

 

[saskflyer]

block are 1/4" NPT. the exhaust manifold ports are 3/4" NPT

Thanks

 

[saskflyer]

Can also install the mercruiser type with the blue plug
View attachment 402043

Thanks