Guys,
Your good old copy of "How to hot rod vw's" has excellent instructions on
this.
Although...if you have stock rocker arms and stock pushrods they really
should be close. Oh, stroked engine?
Cheers, dave
On Mon, 25 May 2015, Daniel Moy wrote:
When I did mine I made an adjustable push rod out of a stock rod. Basically
cut one in half, trim down then cut some threads
and insert threaded rod with two locking nuts.
Install the head torqued to spec. Do not install the push rods or push rod
tubes.
Install your adjustable push rod and your rockers with some spacers to account
for the swivel feet and lash caps (these are a
good idea as the provide a larger surface area for the swivel feet), check the
geometry, there should be no binding when
cycling the engine. If there is binding make the push rod shorter.
Check the adjusted rod in a few locations particularly the other side of the
engine.
If all is well then you now have a properly sized push rod, now you need to
make eight solid push rods. I purchased mine from
gene berg back in the day. Chrome moly, cut them to length and pushed in the
ends.
It's been a while but I believe those are the steps.
On May 25, 2015, at 8:39 PM, Dean Johnson <dean.john...@rochester.edu> wrote:
I re-read the info from the machine shop. He thinks the original engine
builder, Strictly Foreign, didn't set up the
push rod length at all and that I need to do this. That makes sense as
they are way off. So who has a good
description of measuring proper pushrod length?
BTW. RISMachine did the head work.
On May 26, 2015 4:13 AM, "Dean Johnson" <dean.john...@rochester.edu>
wrote:
No, stock rockers.
On May 25, 2015 5:32 PM, "Daniel Moy" <sole...@gmail.com> wrote:
Hi Dean,
Did you have ratio rocker arms, if so did you size the push rods?
Dan
On May 25, 2015, at 5:21 PM, Dean Johnson <dean.john...@rochester.edu> wrote:
I am finally installing my rebuilt heads into my 1915 cc engine. I have
the heads on, put in the
push rods and am test fitting the rocker arms to check geometry.I put the
shims that had been
installed under the shafts originally and there is not nearly enough room
for the swivel foot
adjusters. Even screwed all the way out, they nearly touch the stems. If
I use a thicker shim I am
afraid I won't have enough threads for the rocker arm nuts. ( can I back
the studs out?) will
standard adjusters give me more adjustment? Where is the best graphical
description of adjusting
the geometry? I don't have a dial indicator so if there is another way to
do it, that'd be great.
Dean
'71 Super Beetle
http://deangj.tumblr.com
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