Power Steering

[Modena]

Just to clarify my question, I'm not referring to the fitting itself blowing apart, but rather the pressure rating on the seal that is formed between the two fitting pieces and the hose?

[stephen low]

Just don't leave the chuck key in the chuck - that just makes a mess if you let her rip - lol!!

Had that one beaten into me when I did my auto-machining apprenticeship.

But then I did see a horrible near miss of exactly this as the forgotten key broke free of a chuck one day and flew past that apprentices's face to luckly land harmlessly if very noisely elsewhere far away in the the machining shop.

I'd swear the trainers were all ex-Vietnam Sergeants by the way they roared at that poor bloke afterwards. He was ashen enough from the close personal call.

All looks like fun Mike but I just haven't the time or equipment to tinker like that these days.

I've also probably forgotten more than I was ever taught on the niceties of all those machine shop skills too - Ha

Slo-some

[Aussie Mike]

I left the key in the chuck once with my old Lathe. It flung it right across the shed and gave me a hell of a fright. Taught me a valuable lesson. I haven't done it since.

[Aussie Mike]

Not a bad idea Peter. I've had quite good success using a wrap of masking tape on aluminium parts. Especially when you are trying to juggle things to mount the piece in place.

Cheers

[Dimis]

Kirkham has their factories, Mike has his shed...!
Game on! haha

Amazing stuff Mike!
I can't believe you do all this in just your "little" old shed.

[jcraigau]

Biggest miss we had in high school was a kid moving the Oxy-Acetylene kit after replacing the Oxy with a full tank he didn't put the chain around the Oxy.
It fell off the trolley and knocked the gauge clean off on a metal bench.
The noise was incredible and it shot across the workshop through the wall at the end and ended up on the oval. Missed everything and everyone on it's 15 second trip...

[Modena]

Originally Posted by jcraigau

Biggest miss we had in high school was a kid moving the Oxy-Acetylene kit after replacing the Oxy with a full tank he didn't put the chain around the Oxy.
It fell off the trolley and knocked the gauge clean off on a metal bench.
The noise was incredible and it shot across the workshop through the wall at the end and ended up on the oval. Missed everything and everyone on it's 15 second trip...

yes, saw them do that on purpose on mythbusters - that tank went flying, straight through a double cinder block wall if memory serves me correctly.

[DaveW]

Mike, as usual, love your work.
I wouldn't mind having a go at a pulley myself, did you grind the tool steel angle yourself or is 40 deg an off the shelf bit?

Dave

[Aussie Mike]

Thanks Dave,

I ground it myself. It's only aluminum so regular old tool steel works just fine. I use a green stone (Silicon Carbide) wheel on one side of my pedistal grinder that's great for tool steel.

Cheers

[Aussie Mike]

Another piece of the puzzle turned up on my desk this morning. This is the Uni that will couple the steering shaft to the VP commodore steering rack.



It has the Double D socket on it and it is retained with a pinch bolt. Just looking at it I reckon it'll be spot on for the Commodore rack.



I also picked up the belts for the alternator and pump on my way to work this morning. Can't wait to get home and try them all out.

Cheers

[Aussie Mike]

Hmmm.. Not all going to plan.

Looks like the double D input shaft on the VP commodore rack is not standard. It's the correct diameter 3/4" but it's a bit wider accross the flats. I've dismantled the rack and I'll machine the flats on the input shaft to match the steering uni. This was a bit of a downer last night.

My belts also worked out to be about 20mm too long. Fortunately the bearing supply I got them from where really god and have exchanged them for some shorter ones. They should be in tomorrow.

Hopefully have better luck on the weekend.

cheers

[Modena]

Mike I'm guessing you will need to take 1mm (total) off the double D. The round-tube CR uses the VP rack, and with the Uni that Ian supplies it requires taking 0.5mm off each side of the flats of the D

Ben

[Ryder]

Originally Posted by Modena

Mike I'm guessing you will need to take 1mm (total) off the double D. The round-tube CR uses the VP rack, and with the Uni that Ian supplies it requires taking 0.5mm off each side of the flats of the D

Ben

It's the same with the Harrison and using the VR rack - it needs 0.5mm off each side.

It's pretty hard material, and I'm wondering if it's worth the trouble machining such a small job? I did mine with a second cut file with a safety edge, using a vernier caliper to keep it bang on square, didn't take long and theres no need to take the rack apart.

[Aussie Mike]

Been busy with work in the back yard lately with the driveway going in so didn't get much done on the weekend. I did finally get the right size alternator belt (3rd time lucky) 4PK760 was too long, 4PK740 too short, 4PK750 just right.

I'm using what would normally be the airconditioning pulley on the crank to drive the alternator. This leaves the main belt for the PS and water pump amd lets me keep a good belt wrap on the PS pump. The Alternator tensioner setup probably wouldn't have worked real well with everything on the one belt.



Cheers

[stiffy]

Hey Mikey,

Looks like it will be ready for this years Shelbyfest.....



C U THERE STIFFY

[Aussie Mike]

Hi Ben, yep it looks about 1mm total off the width. I'll get some more accurate measurements on the weekend.

Cheers

[DaveW]

Mike,
I did the same, as Ben said, from memory its 15mm down to 14mm.
I took the pinion out (easy job), set it up in the mill and chattered badly, the shaft is obviously hardened.
I ended having to surface grind it, with a stone in the mill.

Dave

[Aussie Mike]

Thanks Dave,

I got the pinion out the other night but I couldn't get the pin out that goldt the input section to the pinion so I'll have to machine it all as one piece with the oil gallery section attached. It makes it a pain to grip and I reckon I'll machine up a collet to hold it without dammaging it.

Cheers

Michael

[boxhead]

I may have one to send down to you Mike.
For my car :-)

[Aussie Mike]

Thanks Ryder, I look into that.

Cheers