Making CREST’s permanent cradle trolley

Originally produced in early 2014, this was the first informational video about the CREST and its restoration.  The video, narrated by the supervising boatbuilder, Dave Lewis, documents the construction of the trolley on which the hull’s permanent cradle will sit.

The CREST’s restoration is sponsored by the IMB Community Foundation.

 

Advertisements

July 2016 Bulletin

Restoration activity on the CREST over the last 6 weeks has included

TIMBER

STRINGERS

A significant event – the first replacement stringer now in place.   

A brief description of the steps  …

This stringer is one of 2 full-length 8.4metre 65 x 28 stringers on the starboard side, it required roving at each of the 40 ribs (frames) and the scarfing of 2 sections:-

The first section (at the bow) is held in place while holes, drilled  from the outside, go through the plank, the rib and the timber of the new stringer.

IMG_4929  IMG_4936.jpeg

Then a 2.5inch long copper nail is tapped through.

IMG_4977.jpeg    Frame-13-07-2016-07-39-48.jpeg

Photo below shows rove, a square-shanked copper nail and the ss rove-punch.

IMG_4947.jpeg

The rove-punch is used to tap the rove down the shaft of the nail until the rove is gripping the stringer’s surface.

IMG_4942.jpeg

IMG_4950.jpeg

The protruding nail shaft is then cut-off, 
Frame-13-07-2016-08-02-20.jpeg

before the small-roundhead hammer, using rapid tapping,  is used to shape the cut-nail shaft around the top of the rove.

Frame-13-07-2016-07-48-41.jpeg 

  At the plank’s outside surface, a nailhead sized counterweight applies pressure while the rapid tapping happens. 

IMG_4948.jpeg

For the aft length of the replacement stringer, epoxy glue is applied to the .5metre long scarfing (overlap) section,

IMG_4960.jpeg     IMG_4961.jpeg

before this second length goes through the holding, drilling, nailing and roving process.

IMG_4973.jpeg     IMG_4981.jpeg

Photos below show the new stringer – viewed looking to the bow and to the stern.

    IMG_4990      IMG_4984

 

ENGINE

The system relief-valve has been refurbished and installed  …

image002

… as have the tappet rockers and …

image003

… the exhaust manifold.

image004

Refurbished oil strainer in-situ in sump.

image005

___________________________________________________________________________________________