This is a good easy improvement to do on any heads while you are rebuilding them.Īgain.This is how I do it, and it does work. Remember this was all done very quickly, and is no where near perfect. Here are a few crappy phone pictures I took after I was done. Most of these old heads are in rough shape and need the clean up cut. Lube the valve stems good with fresh gear oil, and assemble the heads with new HD springs, and grind the keepers so they don't butt.Īt this point you should probably get the cylinder seating surface cleaned up as well. Use a small bottle brush in the valve guides. Once you get your heads back, I always like to lap my valves to make sure everything looks good. Also have them reface your intake valves and have them grind a backcut on them. Again, this is all a daily routine for any decent engine machine shop. Have them cut new valve seats with a 3 angle cutter. Now take the heads to a local machine shop, and have them core out the old guides, press in new guides and have them size the guides properly. It is nothing VW specific, and most any decent shop should be able to handle it. Most guys will need to take this part to their local engine machine shop to have done. This next part I do myself because I have the available tools. Really this could be done with the guides still in if you used a narrow cartridge roll. Don't remove anything off the port walls making them larger, just remove the ridges that stick out into the ports making the walls smooth. This can all be done with a harbor freight 1/4" die grinder and their cartridge roll assortment pack. Only port work done was to blend the valve seat into the bowl, and knock the ridges out. I thought it would be fun to test a before and after on my flow bench to see what kind of improvement I could make with minimal time, and almost zero physics involved. I also tested it with a back cut on the intake. I decided to do a quick bowl blend while the guides were out, and then my usual 3 angle valve job. I was doing a quick valve job for a local guy building a stock 1600sp. They can show me all their tools, successful jobs, and teach me a different way if they want. I am certain someone will be on here to tell me I am doing it all wrong. It works, and I have had very good luck doing it this way. Posted: Fri 10:58 am Post subject: Quick easy 18.4cfm gain for old Single port headsĭISCLAIMER!!! This is how I do things. Quick sort: Show newest posts on top | Show oldest posts on top (Edited) This thread's bein' posted on the Vision forum because I figure if anybody's had this problem with the Harbor Freight motorcycle lift it would be the Vision pilots.Quick easy 18.4cfm gain for old Single port heads As explained in an NHTSA document announcing. electric or air drill and is great for getting into tight places. Here at Harbor Freight, we pride ourselves on creating a positive work environment where our associates have the tools and. Sanding cone- and cylinder-shaped abrasives reach into tight spaces Tapered 2 in. When used on soft metals such as gold, platinum and silver. 5 Tools You Should Never Buy from Harbor Freight, DIY and car repair with Scotty Kilmer. Electric On-Off Switch Starter Upgrade Kit for Harbor Freight Predator 6500 Watt 420cc Recoil Generator & 5000 5500 6500 Watts 11HP 13HP Manual Cable Start Generator $119.98 Out of stock Currently out of stock Add to list Add to registry Popular items in this category Bestselling items that customers love $1.62 $2.29 Harbor Freight buys their top quality tools from the same factories. Get 10% Off Your Entire Purchase When You Open a. 3 tools you should never buy from harbor freig. Lefoo Pressure Switch Control 90-125psi 4 Port Heavy Duty 26 Amp for Air Compressor LF10A-4H-1-NPT1/4-90-125. Don't get scammed by websites pretending to be Harbor Freight. Bondhus Harbor Freight Allen Wrench Socket Set - Best Pick Not everyone likes to purchase allen wrench set for their daily purpose, but the Bondhus Harbor Freight Allen Wrench Socket Set would be an anomoly. With a commitment to quality and a lifetime guarantee on all hand tools, Harbor Freight Tools is a. Hourly pay at Harbor Freight Tools ranges from an average of $10.66 to $21.86 an hour. Don't get scammed by websites pretending to be Harbor Freight.Learn More. This thickness planer is manufactured by Harbor Freight and has a 15-amp powerful motor. The die grinder is a Harbor Freight item, usually available for about $10. Brand: Sioux Tools: Mfr Part #: 5978A: In Stock: In Stock.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |