"Pierre Jean there is not coreing everywhere and yes the glass is very thin.
Your transom does have plywood coreing as well. It is thicker around the drive.
Its very susceptible to decay.
Usually the area around  drain plug assy is the culprit as the…"

"John, Jeremy, thanks for the feedback, the deck looks so thin CC must not have put a lot of plywood in it.
Btw, how about the transom? is it plywood core also on the Volvo outdrive boats and is that a major problem?
Thanks.
PJ
 
 "

"Whoever told you to protect the core is giving you great advise!!!
One of the biggest weaknesses of the lancer is their front decks were structurally underbuilt.
 There is some coreing in the front deck , none in the side deck , and some plywood…"

"My 71 and 78 were both plywood cored."

"Thanks Scott.  Yes, new engine, not crate.  Ground up build from a core block with the original CC intake, front shield casting and NOS exhaust logs.  "

"Beautiful boat, obviously a lot of love went into it.  New engine or rebuilt or...?"

"You guys are awesome. Thanks Jeremy and Pierre. Apologies for jacking your thread Pierre"

"Tim Miller yes I laid down a layer of MLV (mass loaded vinyl) on the back side of all of the walls of the cockpit liner. That stuff helps with structure borne noise . Then on top of the mlv I installed a layer of soundown which addresses airborne…"

"I used Soundown in Salem Massachusetts.  Their insulation is is an engineered composite of foam and metal/foil.  It is quite heavy and a bit difficult to apply.  They sell you "spikes" with a perforated base that you have to epoxy to the substate at…"

" Jeremy, have you "treated " your 35? The helm is a lipread zone above 3K, but it sure looks sweet with the tabs down and on plane."