Core repair - upside down

[Runaway#23]

There has been considerable discussion on this board regarding core repairs and fiberglassing from the underside. Many comments about getting resin dripping and falling cloth can be eliminated by using a layer of heavy plastic under the cloth and then a 3-4 inch piece of cushion foam to keep constant pressure on the repair until the resin begins to kick.

Having done this successfully in four sections of #23, I had time to snap a few pics while completing the last one, a section of the bow, below the waterline.

[Runaway#23]

Here's a second photo with the foam and boards removed leaving the plastic film, which was peeled back leaving the new cloth. Squeegee out the air bubbles and excess resin, then sand / grind / fair cloth edges in preparation for the second layer.

Lather, rinse , repeat.

[AllenDurow]

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Gravity is not just a good idea, it's the law.

[Runaway#23]

Dang!

I just knew there had to be an easier way! Can you draw a picture of the block & tackle you recommend for flipping over a 7.9?

Gravity Rules!

[AllenDurow]

I'll try and snap a few photos of the device later this week when I head up to the boat. It's a simple concept but too difficult to describe.

[dave]

That will work.

If I do anymore of it [which I know that I will ] I'm going to vacuum bag it. It's a little more work and you have to have the vacuum, but it's the only way to truly get the new core/laminate as void free as possible.

[AllenDurow]

Here ya go Dave. "Block and tackle" consisted of a fork lift.

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plywood forms are bolted to the boatisseri (currently shown in upside down position), placed on boat, and strapped down.
stands are attached at each end and boat is lifted with a farm jack at each end, trailer removed, and boat is flipped using one person and a metal bar. Then boat is lowered and stands removed.