Cleaning head+Block

20th February 2011, 16:26

What is needed to clean the surfaces of the cylinder block and head so I can be sure that there's no leftover from the old gasket?

Thanks

20th February 2011, 16:30

scraper and p80's sand paper, wd40... done!

20th February 2011, 16:35

as above just make sure no grit from the paper gets into any oilways etc

21st February 2011, 20:10

How clean does this head and block need to be? I've got it down to a state where you can still see some marks but it's smooth as you like!

I'll upload a picture shortly....

21st February 2011, 20:22

Quote:

Originally Posted by Shaleskin

How clean does this head and block need to be? I've got it down to a state where you can still see some marks but it's smooth as you like!

I'll upload a picture shortly....

and

Thanks for any feedback!

21st February 2011, 20:33

Difficult to see from pic 2 pic 1 looks pretty clean I use emery cloth until the surface shines.

Steve.

21st February 2011, 20:43

Thanks for the quick reply Steve!
Pic 2 (head) is a lot cleaner than pic 1 (block) as that was skimmed just before xmas... I was in a rush to put it back together for college the following day that I didn't clean the block... (Big mistake I know)

I'm more concerned about the block at the moment than the head, I can take another photo if needed?

21st February 2011, 21:27

block needs to be cleaner then that!

22nd February 2011, 12:27

Quote:

Originally Posted by mandyslover70

block needs to be cleaner then that!

Ok, I have; WD40, a scraper and P80 sandpaper. What's the best technique to remove the rest of it?

22nd February 2011, 12:30

Emery cloth/scothbrite mate

22nd February 2011, 12:50

Quote:

Originally Posted by Mattquantrill101

Emery cloth/scothbrite mate

Should I get 'Emery Cloth grit 80'?

22nd February 2011, 15:15

Tbh mate, ive no idea that scotch brite came in differnt grades

22nd February 2011, 17:19

Checked at work for ya, its one grade only mate

22nd February 2011, 21:00

Quote:

Originally Posted by Mattquantrill101

Checked at work for ya, its one grade only mate

Cheers, this would be the maroon coloured one right?

23rd February 2011, 12:41

Thats what we use or 3m do it in green

23rd February 2011, 15:14

I've pretty much cleaned it up to a point where these little bits of build up? are getting difficult to remove - What is the best way to remove it or is it at a level where I can start building it back up?

I've used; P80 sandpaper and an Emery cloth with WD40 so far.

23rd February 2011, 21:35

I personally would apply loads of ressure with the emery clothto the black lines, just for a few minutes so you no you cant get it any better but tbh, i dont think youre going to get it much cleaner mate, youve done a good job.

dont forget to wipe the pistons off to get the bits off crud out of the cylinders

23rd February 2011, 23:13

Quote:

Originally Posted by Mattquantrill101

I personally would apply loads of ressure with the emery clothto the black lines, just for a few minutes so you no you cant get it any better but tbh, i dont think youre going to get it much cleaner mate, youve done a good job.

dont forget to wipe the pistons off to get the bits off crud out of the cylinders

Cheers for the feedback! I've tried for a while but I'm guessing it's due to pitting? Haha, yeah pistons will get a clean up

23rd February 2011, 23:31

Don't forget the basics - like timing it up properly

Cylinder 1 is obviously not at TDC!

24th February 2011, 00:24

thats good enough by the looks of it mate!!! also make sure all the bolt holes are free of debris/old oil/coolant etc. Hope i'm not trying to teach you how to suck eggs but i usually use an old head bolt wound in with my fingers to check theres nothing left in them.

24th February 2011, 03:56

Quote:

Originally Posted by mandyslover70

as above just make sure no grit from the paper gets into any oilways etc

I would say thats impossible if you are using emerycloth. Theres also filings of aluminium that get in there to fukc your engine up.

I use a steel ruler to clean the surfaces and you can at least see any bits of gasket and recue it.

24th February 2011, 07:08

Quote:

Originally Posted by Railroader

I would say thats impossible if you are using emerycloth. Theres also filings of aluminium that get in there to fukc your engine up.

I use a steel ruler to clean the surfaces and you can at least see any bits of gasket and recue it.

okey dokey,thats cool,what about pieces of old gasket etc,would that be possible,please tell me as i've never changed a gasket

24th February 2011, 14:08

Well, while on the subject of grit/crap going into the oilwells etc. What's the best method of removing it without damaging engine? Sorry for any bad spelling etc as I'm on my phone on the dreaded bus! >_< haha cheers

24th February 2011, 14:18

can u put the pic of the head gasket?

24th February 2011, 14:20

Quote:

Originally Posted by saxvtl

can u put the pic of the head gasket?

I could but I'd have to remove the head again... What's the reason for a pic of headgasket?

24th February 2011, 14:23

is it the same like mine?

24th February 2011, 14:29

Is that gasket made by BGA? I did have that one for the last 4weeks as I did the gasket wrong. Bought my recent one from eBay and it's blue instead of red lined. Oh! Does yours have the lines on both sides as mine only has it on the block side on the gasket....

24th February 2011, 14:30

only have on one side
but i want to know are the same holes on your gasket?

24th February 2011, 14:37

Some holes are a little bigger but they're placed in the same locations.

2nd March 2011, 19:21

Quote:

Originally Posted by Shaleskin

Well, while on the subject of grit/crap going into the oilwells etc. What's the best method of removing it without damaging engine? Sorry for any bad spelling etc as I'm on my phone on the dreaded bus! >_< haha cheers

you cant remove it, when its gone its gone. It will be pumped round the engine then picked up by the oil filter. Out of sight out of mind.

2nd March 2011, 21:03

looks like your inlet valve on no3 is letting a bit of oil throw.