Wellcraft Gran Sport Soft Stringers

grameric

Recruit
Joined
Sep 6, 2012
Messages
4
Hi everybody,

I have a 1985 Wellcraft Gran Sport with MARINE POWER 454s. I am having a problem with the stringers getting soft and as a result the engine mounts are getting loose after every trip. I have talked to some boat owners and apparently this is very common in 80s boats because of the wood they used under the fiberglass. I installed some plate over the three bolts on the mounts that I could access, but they are still getting loose and every time I tighten them I can hear the fiberglass cringe. I already lost a transmission because of it last year and I can't afford more damage. Does anyone have any suggestions to resolve the problem without taking the motors out and redoing the stringer from scratch. It is an older boat and I love it, but I don't know if it is worth that kind of an investment.
 

grameric

Recruit
Joined
Sep 6, 2012
Messages
4
Wellcraft Gran Sport Soft Stringers

Hi everybody,

I have a 1985 Wellcraft Gran Sport with MARINE POWER 454s. I am having a problem with the stringers getting soft and as a result the engine mounts are getting loose after every trip. I have talked to some boat owners and apparently this is very common in 80s boats because of the wood they used under the fiberglass. I installed some plate over the three bolts on the mounts that I could access, but they are still getting loose and every time I tighten them I can hear the fiberglass cringe. I already lost a transmission because of it last year and I can't afford more damage. Does anyone have any suggestions to resolve the problem without taking the motors out and redoing the stringer from scratch. It is an older boat and I love it, but I don't know if it is worth that kind of an investment.
 

Lyle29464

Lieutenant
Joined
Mar 10, 2009
Messages
1,261
Re: Wellcraft Gran Sport Soft Stringers

You can test a few spots in the area with a small drill. You have to go till you find good dry wood then repair. Where ever that takes you.
 

Pete104

Lieutenant
Joined
Apr 30, 2011
Messages
1,439
Re: Wellcraft Gran Sport Soft Stringers

Fix it! I'm going thru the same thing with an '83 Cruisers.:)
 

grameric

Recruit
Joined
Sep 6, 2012
Messages
4
Re: Wellcraft Gran Sport Soft Stringers

You can test a few spots in the area with a small drill. You have to go till you find good dry wood then repair. Where ever that takes you.

I know where the soft spots are. Any suggestions on how to repair it?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,362
Re: Wellcraft Gran Sport Soft Stringers

I know where the soft spots are. Any suggestions on how to repair it?

Ayuh,.... Welcome Aboard,.... Pull the motors,... Pull the motors,... Pull the transom assemblies,...

Then replace all the rotten wood,....

There ain't no easy button, 'n there ain't no shortcuts...
 

grewvin1

Petty Officer 2nd Class
Joined
Apr 2, 2012
Messages
189
Re: Wellcraft Gran Sport Soft Stringers

As a Wellcraft owner they are too grand a boat to let go, as above pull motors have replaced and done right after the cash is spend you will love the boat more. Bsides there is no other way to go.
 
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