Posted by Shaw on February 3, 2010, 11:05 pm
Anyone ever use a pusher type tool to remove/install the valve keepers in a
DOHC engine? If so, which make of tool did you use? Thanks.
Posted by @ on February 4, 2010, 7:35 am
> Anyone ever use a pusher type tool to remove/install the valve keepers in a
> DOHC engine? If so, which make of tool did you use? Thanks.
The valve springs on a modern 16-valve engine are very weak, so I
don't use a valve spring compressor.
I just set the cylinder head, with all four valves in the combustion
chamber, on top of a wadded up shop towel so the valves can't move.
Then I place the valve springs over the valve stems.
Rocking the springs toward me allows me to position the first keeper
in the retainer.
Then I place the other keeper on top of the upper spring retainer and
push against the retainer with a large diameter deep well socket and
rock the spring around until the keepers fall into place.
(BTW, Neil Murray sucks. Literally.)
Posted by TOG@Toil on February 4, 2010, 10:30 am
> > Anyone ever use a pusher type tool to remove/install the valve keepers in a
> > DOHC engine? If so, which make of tool did you use? Thanks.
> The valve springs on a modern 16-valve engine are very weak,
It's hard to know where to start with such nonsense, so I'll keep it
simple for you. They aren't weak.
Modern engines have very high rev limits - 14k or so these days. That
means they need *stronger* valve springs than the old clunkers you
last rode. More revs = stronger valve springs, otherwise all high-
performance engines would use springs out of Bic ballpoints.
Ducatis, as ever, are an exception ;-)
> so I don't use a valve spring compressor.
First, you haven't worked on a modern engine and secondly, this is
just crap advice anyway. Use the right tool, OP. It makes the job
simpler, easier and safer.
Posted by Sean_Q_ on February 4, 2010, 12:41 pm
TOG@Toil wrote:
> Use the right tool
What reactionary advice. What'r ya tryna do, make trouble
or somthin'? Suppress individual creativity? Impose a rigid,
conventional, stultifying pontificating pedantic orthodoxy
over people's fundamental human right to have their valve springs
launch themselves skyward at the Escape Velocity?
Youse bloomin' blokes from Blighty ain't learned a thing about
Yankees and their tinkering since the Tea Party in Boston Harbour.
SQ
Posted by Bob Myers on February 4, 2010, 1:08 pm
> Modern engines have very high rev limits - 14k or so these days. That
> means they need *stronger* valve springs than the old clunkers you
> last rode.
I believe I've found an example of one of those:
http://tinyurl.com/yftlhbb
Bob M.
> DOHC engine? If so, which make of tool did you use? Thanks.