Administrators BRAAP Posted November 16, 2010 Administrators Share Posted November 16, 2010 What is shown in Braap's post is actually a different way to make a threaded insert. Personally in that instance a nice Keen-Sert or Rosanne Insert would have worked for me. I don't know that I would have 'manufactured' one! ... We generally just Heli-coil, but that particular bolt hole was beyond using over the counter inserts being grossly oversized, offset, and angled, hence the offset of the custom DIY insert. I like the set-screw idea for the head oil supply, similar to fuel metering jets for carbs... ;- ) Quote Link to comment Share on other sites More sharing options...
Tony D Posted November 16, 2010 Share Posted November 16, 2010 (edited) Yep, given the availablity of Holley or Rochester jets, a custom milled application would be already available to screw right in! Externally though, with the double plug external feed line, the head gasket will never weep oil there ever again...regardless of pressures encountered! A 10mm Keen Sert is close to that size, and has nice coarse threads to make removal/refreshing easier... Edited November 17, 2010 by Tony D Quote Link to comment Share on other sites More sharing options...
Lazeum Posted November 17, 2010 Author Share Posted November 17, 2010 (edited) i like the tapped oil restrictor idea I might have the appropriate parts available at work. A set screw should not be too difficult to get. thanks guys for your ideas! Edited November 17, 2010 by Lazeum Quote Link to comment Share on other sites More sharing options...
Tony D Posted November 17, 2010 Share Posted November 17, 2010 BRASS or tool steel! A hardened setscrew will be a pain to perforate! I used setscrew as it was shorter than saying "brass internally-wrenched hex screw"! A simple one can be made using a standard brass screw, drilling the center, cutting it off, and then using a hacksaw to cut a screwdriver groove in the top. Loctite or staking it in place will keep it from getting loose. Quote Link to comment Share on other sites More sharing options...
Lazeum Posted November 17, 2010 Author Share Posted November 17, 2010 I'll keep your idea in mind Quote Link to comment Share on other sites More sharing options...
Lazeum Posted October 10, 2011 Author Share Posted October 10, 2011 (edited) This thread is old but I've got one question which is not worth opening a new one. My engine is now torn down, I brought it to the machine shop this morning. I believe previous rebuild was not done right: cylinder bores honing marks are gone, there're vertical markings on every bore (very light, I can't feel them with fingers), ring gaps are too big, piston skirts have scratches also, etc... Anyhow, My question is very simple. I've removed the oil plugs on front & back sides but I still see something which looks like a plug, I'd like to know what is it? A valve for oil pressure? Should I remove it before machine work? Thanks in advance for help. To answer the previous post, I decided to stay with pressed-in inserts (given by Braap with the new HF pump ) Edited October 10, 2011 by Lazeum Quote Link to comment Share on other sites More sharing options...
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