I read the How to hot rod instructions and couldn't make sense of them 'Adjust the push rod so that it fits...' Not helpful and I don't have any idea what centerlines they're talking about and what does it mean for two lines to 'coincide'? Not at all helpful.
Still looking for instructions with visuals. On May 25, 2015 9:29 PM, "Dave C. Bolen" <[email protected]> wrote: > 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 <[email protected]> >> 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" <[email protected]> >> wrote: >> >> No, stock rockers. >> >> On May 25, 2015 5:32 PM, "Daniel Moy" <[email protected]> >> 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 <[email protected]> >> 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 >> >> >> >> -- >> Dean G. Johnson, PhD >> Postdoctoral Fellow >> Biomedical Engineering >> McGrath Lab >> University of Rochester >> Robert B. 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