Engine Building for the Home Builder

[enigmas]

I thought I'd post a few videos here from UTG. Briefly Tony is a time served mechanic that seemingly has done the lot. He has developed a UTube Channel for guys who build engines on a budget. Tony's preference is for old style analogue technology with traditional engines. The KISS principle, as such much of the information he posts is useful to amateur engine builders with limited resources. His focus is primarily on MOPAR (Chrysler) products but this covers most aspect of both 6 (Slant 6) and V8 engines. It's definitely worth while taking a look at his videos.

The one below is on engine hones and their use.


Checking Bore Taper & Condition


Degreeing Camshafts

[djm16]

I particularly liked the reasoning behind not using the bottle brush hone.

[enigmas]

The flex hone (bottle brush) is a great tool for placing the correct 45 cross hatch pattern on an engine's cyl walls David.

The stone hone as Tony states, cleans and straightens the cylinder walls when used correctly. If used incorrectly or too enthusiastically it will remove too much material so take care when using a stone hone.

The 2 hones used properly in conjunction provide an ideal surface to bed in a set of rings on a used but viable cylinder.

My project engine (c.1973) runs a standard bore and rebuilt pistons. The worn top ring lands were machined for a set of custom cast iron rings. The remaining 2 lower rings (2nd compression and oil control) are new standard size. Piston skirt coatings were applied to add a couple of thou to the skirt dimensions.

The engine bedded in within the 20 mins that I initially ran it on the engine stand.