Wood engine mount spacer thickness

Engines, Shafts, Steering, Struts, Rudders, etc.
boattown
Member
Posts: 11
Joined: Sun Mar 15, 2015 2:53 pm

Wood engine mount spacer thickness

Postby boattown » Fri Jun 30, 2017 10:25 am

I am in the process of reinstalling the 318 Chrysler engines in in my 32 FB Sedan and I noticed that the wood engine spacers are different thicknesses—by about 1/4". First I thought it was because the inboard engine stringer was lower to account for the the slope of the hull, but they appear to be level. Any ideas or information would be appreciated. This is the same for the front set (with 2 holes) and the rear set (three holes). Also, why was there a sheet of rubber wrapped around the wood?
Attachments
IMG_2012.JPG

EWRice
Aluminum Star
Posts: 198
Joined: Thu Feb 04, 2016 12:37 pm

Re: Wood engine mount spacer thickness

Postby EWRice » Sat Jul 01, 2017 5:17 pm

I used scrap pieces of 3/8" marine ply from my dad's boat building project. The wood that was in there was smashed, split, rotten, and spongy. I figure at least the ply won't split. Had no problems in lining the engine or running out of adjustment.
Muskegon Lake
1972 32' Express flybridge
Twin 318s
On board air & prime 920
1963 Thompson Super Sea Lancer
Graymarine 327
1961 Alumacraft 12'
'55 10hp Johnson

BlueSkye
Tin star
Posts: 56
Joined: Sun Jul 20, 2014 9:38 am

Re: Wood engine mount spacer thickness

Postby BlueSkye » Sat Jul 01, 2017 7:46 pm

I can't advise on the correct thickness, but I replaced the old wood spacers with 1/4 Starboard. It won't rot. A wood spacer is a short term solution. There is lots of adjustment in the mounts to align.
1971 32ft Express 2x318
Seneca Lake, Erie Canal, Lake Ontario, Rideau