motor mount bolts through stringers

[78 Sprint]

I have a question maybe you guys can help me with i notice that the motor mount bolts that go through the stringers are starting to pull through, is this from over thighting or what. what can i do to fix this right. do they make some kind of plate that goes on the outside, any help would be appreciated, 79 eliminator

[Moneypitt]

I usually just fabricate some 3/16- 1/4 inch X 4-6 inches alumium plates to use as a backing plate to the stringer.(this will spread the load). I've seen them used on both sides, but usually the engine mounting hardware spreads the load pretty well. ...Moneypitt

[Infomaniac]

Doubler plates as described if it is too late for stringer washers.
While the bolts are out - mix up some resin and coat the boat holes using a q-tip or equivalent.
[ July 07, 2003, 06:50 AM: Message edited by: Infomaniac ]

[hack job]

Infomaniac:
Doubler plates as described if it is too late for stringer washers.
While the bolts are out - mix up some resin and coat the boat holes using a q-tip or equivalent. these are both good ideas ( you dont want to have to replace the stringers , lots of work) eek!

[78 Sprint]

thanks for the info i'll get some backing plates mades. appreciate all your help 79 eliminator