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I assume if we can achieve good concentricity and a reasonable seat now, the running-in process beds in the seats after the first few runs ?

Thanks, For now think i will re-make and install the valve cage without seat as i wont to move on to the inlet manifold and need the valve cage in place. Later ill make the cutter and do some testing before cutting the seats.

Hi, What did you end up doing @scooby , Valve seat cutter or valve and compound grind on a square cut seat. Im glad i read your post as i was amazed I could hold vacuum when the valve was off its seat (using my brake bleed pump) same as you.

Have not updated for a couple of weeks and wish I had made more progress. Although have ordered some drills for the carby jets and looking at upgrading my cnc router to better handle two sided machining. Machined the rails and took too long to make two silly little brackets for the radiator...

Another element ticked off the list. Awaiting some silicon tubing so I can do a pressure test however visually the soldering of the cores and tanks looked good under the magnifying glass. However a mounting screw in the lower tank has penerated the the interior of the lower tank, so will need...

Haha. Im still years away from looking at last sheets. Thanks Ill take a look at my plan set, as they do look good

Hi, nice job Where did you buy the rubber boots for the dist cap and plug end

If you google “workbee cnc” thats what the frame is modelled from. Another one is “ox cnc”. Then its up to you on motion, software and spindle choices. This unit limits z height to provide better rigidity however i may machine some 1/2” thick side plates another 1” taller for Z. I made it 5...

Hi, Can I ask how you will harden those cams ?

Did a little bit of "watching" this weekend whilst my CNC router did its thing to the radiator support model. I am not considering converting my Mill (optimum BF20)to CNC however my little CNC router table does a reasonable job as long as I dont need a tall Z. One day I do plan an upgrade...

Would you consider making your own version of the rivet with a flat face and hole to take the wire. Solder the wire into the contact and then thread the cable through the inside of the dist.cap then silastic the wire in place, from the top. That way you could also consider the contact...

Hi, I am about to machine the mounting skids for a Howell V4 engine and I want to make some longer skids so I can eventually mount a starter motor directly engauged with the flywheel. I am really surprised that in the models of Jerry Howell he "seems" to have a DC motor which does not have a...

I have never made Brass name plates before so thought why not give it a try. Although as I do not have access to a laser printer I purchased some transfer paper from a local electronics shop which is used to make PCBs which stated laser or photocopier. So printed some Howell logo's out using...

Thankyou @scooby . A step file uploaded into fusion360 project worked flawlessly.

@scooby I gotta get my software sorted. The dam Fusion360 personal use version does not convert mesh to solid object and is limited on import file formats. I was looking at a solidwork lic for $~50 / year for personal use. Maybe I should change software although just got the hang of the...

Nervously waiting for the silver solder paste to arrive to complete the radiator. Looks like I better get fusion360 fired up for the radiator support brackets and dust off the CNC router which will be good for the engine mounting skid and rad supports. I will enjoy seeing these items being...

That is simply awesome.... How did you make those mudguards

Didnt know what the policy was for supplier details. the url is in the top of the pic though as took it from my phone :) As I have no real training, sharpening any tool is a challenge in term’s of understanding optimal angles however with the profile of these its easy, and worth the fact...

For reference this is the blade used from an australian supplier having USA stock and ended up running at 750 rpm. Cutting from the chuck to tailstock was better and did not cause any noticable displacement of the adjacent fin. I might get a few more blades of differnt sizes as the profile and...

wow, this is going to test my patience, the first radiator tube messing around with setup took me 3 hours. Not much deformation of the fins although at first, I thought the fin itself was 0.040" and then realsied its .026" ! Anyhow now I understand stock length and how to best hold it (I set...