Originally Posted by
deanz406
When i was replacing the firewall on my wrecked one, i used really good 5 ply- 1/4 " aircraft plywood to cut the firewall, and then had to add another 1/4 " X 2 1/2" block behind the aluminum motor mount and that pretty well made the cowl fit perfect, and prop washer location right on location.
Yes, I remember that... but you were fixing a collapsed issue firewall, right? If I just reinforce the still-solid original kit firewall, along with doing whatever I can to reinforce the interior side of the original firewall with the fuse sides, why should I use the thicker five ply wood AND another 1/4"X2.5" center block for the engine mount?
BTW, my new OS .61SF was mailed today. Should get it early next week.
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