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I was concerned when I started to spin my faceplate and angle plate with the V-4…. Angle plate weighed alot more than the block itself…Placed a couple of mill holddown clamps as counterbalance. Your option looks alot less scary ! I struggled with the oring grooves tooling as well. I placed...

A small Kitchen reno then winter distracted my progress on the V-4 for what seems to be 12 months !. Spring has arrived so warmer in the garage so hope to make some progress. Be great if there was a few more Howell V-4 being built. - does not seem a very popular build these days ? This...

Thanks, Im not up to the crank yet but will follow your advice

Someone told me to melt down pewter goblets or beer stein’s ? Dont know how real that is

Have you started the engine. I am 50% through. From memory think the tiniest tip of the spark plug thread broke through on two of my cylinders

I ask google or siri to convert to metric and write them on the plan, one-by-one. Not a great response however Easier than a calculator :). Have you started the engjne

Haha, Im just about to visit your thread on valves…as Ive just completed the rockers and push rods and want to complete the heads. I left the valve cage seat square in the head and thinking Im just going to fit the valves and dont really want to pressure test now. I think it will be like a...

So being on the other side of the world its exciting get a package from USA.... :) although we dont enjoy the exchange rate and frieght costs. I got the spark plugs, TIM6, coil and another set of screws and orings just in case I lose any or nic an oring. What I did find is that Howell is...

I did an order on Victor Machinery Exchange in the USA for reamers, taps and DP48 gear cutters when I got the plans. In my ignorance I thought I could adapt some parts to metric, I was incorrect ! At the time the tools plus shipping ended up maxing out my budget. The guy at VME was very good...

Chipping away at some of the smaller parts now…. Distributor Drive Housing, squared up some material on the mill and drilled / machined the shafts on the lathe before returning to the mill to finish off the features. The dist body requires 1/4” end mill for the bearings pockets, ordering...

Completed the carby body and other bits and pieces this month. Still have to drill the jets so a little apprehensive in drilling a 0.45mm hole. After i finish tapping the holes I will hit it with the sand blaster to remove the machining marks. Need to design a top plate so I can mount an...

Oh stainless quad tips, want this in my car ! Roll on the carby, it is definitely next

13 days later this arrives from China…. Excited to get the heads drilled and these manifolds attached. Oh I also did some work myself in machining the rocker arms, i did the outside profile on the cnc and cut them out and finished on the mill. So back to full DIY now and ill leave the SLM...

Inlet manifold fitted very well so decided to get the exhaust manifold done and could not resist getting a small muffler. Its still really a straight pipe as decided no baffles, so its cosmetic. Ill machine a couple of stainless steels pipes and blue the tips :) to finish off the tailpipe...

Wow wow….. cannot believe how well the inlet manifold turned out.. SLM printed in aluminium. I ran the face across a file and the flanges are going to machine very well I think. I plan to use 4 threaded studs and washer/nuts for the top carby mounting. The surface is so uniform its a...

@bluejets Ohh Something i should keep in mind Without loctite you could slip then in, nearly by hand ! however with a smear of loctite they needed a little more persuasion. Hope they will be ok however at least with a press they went in straight which I was most concerned about. Point...

Just a small update. Purchased a (1 tonne) arbor press to install the valve cages into the head. When I tried to press the bearings onto the cam shaft I cracked the small bearing flange so thought a press will help future assembly of the camshaft as well. Small update to the heads below...

I must do some googling on electroforming,

I think from memory it needs a min wall thickness of 1mm for metal printing. Now the cost of the radiator I think would be beyond an acceptable cost, for me at least. I can only guess at ~$450 as it must be 8x more material than the inlet manifold. I dont have a step file to upload of the...

Nothing ventured nothing gained, I was getting some high quality resin 3D prints done for another project and stumbled across the fact that I can get SLM aluminium parts printed. I wanted to give it a shot so have sent off the Howell v4 inlet manifold (thanks @scooby )to get...