Machine Head Project

[diesel des]

The best thing i found for alloy porting was a little round rubber thing that takes round tube shape pieces of sand paper. The little tubes push over the rubber thing. You get the sand paper in different grades. The rough ones REALLY move alloy fast! Those stone things just get clogged up with alloy as it is so soft. The carbide cutters are ok but really work better on iron.

[Flat on my back]

Imoa.

I would get this set, double cut for finer control and all the shapes you'll ever need.
And at that price sod the taxes and postage its still way cheap!!!

SET#3 DBL

Stunning find Error...

Soooooo tempted!

[mcandmar]

I'm going shopping for a kit of head porting stones next - any recommendations ?

Standard Abrasives - Deluxe Porting Kit

[4WheelDrifter]

I made my own cartridge rolls from various grades of wet & dry, 'cause I'm a cheap skate.

[Error404]

How do you get them to hold together? Even the bought ones last about 5 minutes

[4WheelDrifter]

I found PVA glue does the job.

[terrybullwon]

Standard Abrasives - Deluxe Porting Kit

I have two of these kits on route from the USA, doubt i will be doing mine my self :mischeif:

If some one needs a kit drop me a PM

[S2central.net]

i thought that might be a good excuse for you to invest Carl


So have you planned the actual porting yet Paul? What is going to be the plan for machining the ports etc? Any idea in the extent you will go to?

I'm really just looking for a tidy up here -

- decoke all round
- remove any casting flash and sharp edges
- match the inlet ports to manifold and gasket
- reduce any tight radius on the ports - but can't see many to be honest
- don't wanna sharpen or polish anything on inlet side
- polish the exhaust ports and make sure the EM ports are bigger

I'm not going for anything radical or risky - I have the cutaway photos as I very handy guide.

Paul

[Error404]

what is the best technique for "marking" any area to be machined to match the port to manifold & gasket?

[S2central.net]

Engineers blue dye is what I would use... But the tricky bit is getting the IM to stay in the right position. The traditional method for that is to insert a couple of dowels so that the IM aligns to a consistent position. Thats tricky for me as I dunno where its safe to drill two new holes - Diesel_Des gave me a tip along the lines of welding up a few bolt-holes in the IM which are then drilled narrower than normal so that the shoulder of the studs holds it snug in a consistent place.

[4WheelDrifter]

The other way is to match both the head and IM ports to the gasket.

[Error404]

ouch! tricky business this isn't it

[Mark Halligan]

Aye - you are one big hairy dog alright - with a deep shiny coat, a collar full of bling and a bite to match its bark with the stuff you've been up to on that animal of yours

No sweat on that template - I just figured you hadn't posted until the strike backlog had calmed down. Its not like I'm in a desperate rush for this job. This weekor next is grand.

I'm going shopping for a kit of head porting stones next - any recommendations ?

Paul

LOL

I sent it you yesterday 'next day' delivery, the helpful counter assistant said it would be with you by 13.00 today...

Did you get it?


Standard Abrasives kits are very good, although mine was a little low on stock, so I bought a kit off ebay (just cartridge rolls) and that did the job well enough too.

[S2central.net]

Got it yesterday Mark - meant to tell you - Mega - thanks for that...

I'll share a pic or two here for posterity.

One question though - how deep do the new holes on the IM side need to be to accommodate the extra studs for the water rail - same as existing studs or what ?

Paul

[Mark Halligan]

Got it yesterday Mark - meant to tell you - Mega - thanks for that...

I'll share a pic or two here for posterity.

One question though - how deep do the new holes on the IM side need to be to accommodate the extra studs for the water rail - same as existing studs or what ?

Paul

At work now, I'll measure them later tonight/tomorrow and get back to you..