Piston & Cylinder-Discolor, Carbon, Lube?

[syugg]

Just took the heads off my 96 Disco. I?m cleaning the top of the pistons & cylinder walls. Several questions:

I started spraying Purple Power Degreaser on the cylinder walls and piston heads and let it sit over night. The following day I used a Scotch Brite pad (for delicate surfaces) and scrub it down to remove most of the grease and carbon build up. Then I used carb cleaner for some of the tougher carbon build up. In any case, I noticed the piston head is slightly discolored where the degreaser pooled(sat) over night. Is this anything I need to worry about?

Is the CRC Brakleen (red can) safe to use on the pistons (by the way what is the difference between the red and green can ? they are both non chlorinated)? I still have some stubborn carbon build up on the piston heads I?m trying to remove. Any other suggestions?

Once the pistons and cylinder walls are clean, should I lubricate the cylinder walls with a light coat of motor oil to prevent a ?dry? start?

 

[ptschram]

Oh for the love of God, stop now!

Throw the scotch-brite pads away.

Read the fucking label on the purple power, it probably says not to leave it in contact with aluminium.

If you use anything but a paper towel and brake cleaner to clean the deck of the block I will drive to wherever you are and beat you senseless!

There is no real benefit to cleaning anything more than loose debris from the pistons. YES, lube the walls.

 

[ratboy]

Oh for the love of God, stop now!

Throw the scotch-brite pads away.

Read the fucking label on the purple power, it probably says not to leave it in contact with aluminium.

If you use anything but a paper towel and brake cleaner to clean the deck of the block I will drive to wherever you are and beat you senseless!

There is no real benefit to cleaning anything more than loose debris from the pistons. YES, lube the walls.

kids nowadays just dont listen PT.:hammer: pick me up on the way please.
do you think it will smoke now?

 

[eliaschristeas]

damn... i'll fly out and meet you guys!!! i laughed when i read this.

SYUGG - just put your crap together!!! coincidentally, I was talking to a friend the other day about what cleans engine parts best what and what to use and on and on....

Back in the day, he used a vaccuum line from a carburator to suck in tranny fluid.... then water.... chuggady blubbady chuggady... while keeping it at a high idle.... after the 20 minutes of cheech and chong smoke fest in his driveway, he claims that thing ran better than ever....

i donno. no chemical can do to those things what proper maching is designed to do - or renewing parts for the love of moses. drop your pan and do bearings, pistons and rings. it'll be better than purple power.....

 

[syugg]

Oh for the love of God, stop now!

Throw the scotch-brite pads away.

Read the fucking label on the purple power, it probably says not to leave it in contact with aluminium.

If you use anything but a paper towel and brake cleaner to clean the deck of the block I will drive to wherever you are and beat you senseless!

There is no real benefit to cleaning anything more than loose debris from the pistons. YES, lube the walls.

Doh!!! I guess I had one of those Homer Simpson moments.:banghead: I'm just a shade tree mechanic at best so take it easy. Now that the damage is done, do I have anything to worry about?

 

[ptschram]

Dude, you get a thousand bazillion good guy points and an equal amount for being willing to learn.

I apologize for being harsh-think of it as tough love. I really do love these trucks and their owners. Think of it, we automatically have something in common!

You'll be fine. Be careful read labels, come here and ask lots of questions, use the search function. If you really, really get stuck, call me!

You'll be fine and the next thing you know, I'll be complimenting you on being a quikc learner.

Cheers,
PT

 

[landrovered]

PT acquires another minion. What are you doing with all these young boys anyway PT?

 

[Twins Disco]

This was very helpful...lol I was about to use Brillo on the walls.lol

 

[KyleT]

pshh, red scotchbrite is where its at, especially on a whiz wheel...