To those as stupid as myself,
                                                I have the renesis motor with Jeff
Doddridge’s  water block to replace the original  manifold.  It fitted beautifully
but once I filled the coolant I noticed a slight leak at the  bottom.  Cursing myself
for having not fitted it properly I removed it (along with the slide throttle and
pipes, an hours work) to find what seemed not enough clearance between the block and
a washer.  I cleaned everything up, filed more clearance between the block and the
surrounds, refitted the water manifold, and no leak, Eureka!!  A few days later I
noticed a slight water leak down the front of the motor, and next day the same water
leak at the bottom of the manifold once again.  This was with no pressure in the
system at all, so it could not go “as is”. Once again I removed everything and again
could not see anything wrong, clearances were not the problem.  I now suspected the
welds on the manifold block.  Much filing and probing with a needle revealed no
possible hole in the weld.    Then it finally dawned, I am totally stupid!!

   When I had put the manifold on both times, I had been very economical with the
gasket putty so as to not have too much squeezed out into the water channels.
Therefore I simply applied the gasket goo to the surrounds of the manifold holes.
Lovely job I did too.  What I forgot however was that Jeff Has put 2 internal
mounting bolts to hold the manifold onto the engine block, again nicely done.  In my
effort to minimise the gasket goo, I omitted to surround both bolt holes with gasket
maker.  That allowed the coolant to seep down the bolt holes and out. It was
impossible to pick up the source of the leak being so slow.    Well I fixed it!
There is probably so much RTV on the join now that I have probably blocked both
manifold holes!  Actually all I did was to put a smear around the head of both
internal cap screws so that the coolant is prevented from passing the head of the
screw.  Why did I not pick that in the first place??  Hopefully it will prevent
someone else from getting into a temper.

Neil. Unger

-- 
The Rotary Engine News Letter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
You Tube key word PaulLamar2
Copyright 1998-2012 All world wide rights reserved.