Todays Project - What did you do today?

[Shawn]

Made my first pulley today. It's the start of a counter shaft project for my little Benchmaster horizontal mill. I'm always happy to find people's name on any tools I buy especially the homemade ones so I engraved my name and date on the pulley. Being strictly a horizontal mill, the speeds are way to fast for milling anything but aluminium and brass so I don't expect the mill will be converted back in my lifetime or the next owners?








Edit: I am planning to leave all the original parts "as is" so the next owner can convert it back to original if so desired 

[Micktoon]

Hi Shawn, nice looking pulley, what did you use to sttamp yur name with, it looks so neat for hand stamping. Very nice job, as you say nice to see a name on things.

Speaking of names on things , lovely job of the name plates too Rob, they do look like cast,you have got a good depth on the etching .
  Cheers Mick

[Shawn]

I cheated Mick and used my CNC mill to do the engraving. ? What Rob did with photo etching looks amazing, I would have bet money on it being a casting.

[RobWilson]

(02-21-2015, 08:22 PM)PixMan Wrote: Those really look to be castings from the depth of the relief and the finish in it.

What will you use them for, and what will be inscribed in the blank space?

I am going to rivet them to tooling and other things I make , just poncing  about really LOL .  The larger one will be going on my forge . 

The blank rectangle is were I will hand stamp the date the item was made . 



LOL Darren the larger one is about belt buckle size , but I there is not enough room to fit my size ( fat bastard ) in the blank space LOL 

Rob 

[RobWilson]

Well made pulley Shawn 


And there is F*&k all about CNC thats cheating   

Rob  

[Mayhem]

In a recent post, I spoke about having to dismantle my Mum's engine after the timing belt let go.  The car is a Holden (Vauxhall/Opel) Astra 1.9L SOHC turbo diesel, with a little over 70,000 Km on the clock.  

I was really surprised to get the head off and find that pistons were not trashed, nor were the valves bent.  However, it is going to need a new head and camshaft, and the RH end drives the brake vacuum pump and the slot in the end of the cam has been damaged and broke the drive adapter in half.  In the process it has gouged the end cam journal.  I'm going to price up an exchange head.

The reason the timing belt failed was that it got shredded by an idler that had tuned into a blob of molten plastic.  I had to chisel off a lump of melted plastic so I could undo the bolt that holds it to the block.  At first I thought the bearing must have failed but once I removed it, the bearing turned out to be fine.  I am at a loos as to what happened.  

The intake manifold, intake ports and other parts of the air intake system are full of an oily sludge, which I hope has occurred as a result of the timing failure.  However, the head gasket shows no signed of failure...

Here are some pictures:

One trashed timing belt:
   
   

The culprit:
   
   

One of the pistons:
   

Sludge in the throttle body:
   
   

[PixMan]

Ugh. Diesel engines get SO filthy!

How the heck does sludge like that build up within the intake system?

Is a replacement tensioner pulley available in "all metal" construction?

[arvidj]

(02-22-2015, 08:16 AM)PixMan Wrote: Ugh. Diesel engines get SO filthy!

How the heck does sludge like that build up within the intake system?

Is a replacement tensioner pulley available in "all metal" construction?

Ken,

It is a turbocharged engine ... Astra 1.9L SOHC Turbo Diesel. I will speculate that the turbo bearings are lubricated via pressurized engine oil and then further speculate that the turbo shaft oil seal is no longer 100% effective.

I am sure Darren is looking forward to resolving that issue 

Arvid

[Mayhem]

(02-22-2015, 09:05 AM)arvidj Wrote: ...I will speculate that the turbo bearings are lubricated via pressurized engine oil and then further speculate that the turbo shaft oil seal is no longer 100% effective...

Thanks Arvid - I'll be sure to check that out. I've not worked on turbo engines before. I much prefer to play with small block Chevs

[arvidj]

Darren,

For the first 15 years of my automotive life the small block and straight line racing was THE ONLY way to spend my free time.

Then I discovered corners ... both left and right ... and small import cars became my thing.

I have several gas turbo cars. In my opinion turbo's need a little bit of extra care and attention ... spool down and cool off time before being shut off, additional thought when selecting motor oil, etc. lest things like the seals and bearings go walk-about ... but are worth the effort.

Arvid