Cleaning/rebuilding block q's

[canonize-ryda]

I'm prepping my block to be rebuilt again and last time I didn't do anything special in the way of honing or decking the block. Now this time around, my pistons leak oil and now there is also brass metal flakes everywhere.

I have a few questions, first asking if I need to remove the freeze plugs or can they be left alone? Also do I have to have my head and block redecked or can I clean them up good enough to work? I also would like to know if I should have the block main journals or anything else machined? I see one cylinder wall with a slight marking maybe from a ring so I think they will need rebored?

What do you guys think?

 

[BogusSVO]

Changing out the core (freeze) plugs will be a good idea, pull them before the block is cleaned and replace them after the block is cleaned and machined. This way there are more openings to get to the waterjacket and get all the built up crud and rust.

Well as far as surfacing the head and block.

Has the head been checked for warp?
http://www.dsmtuners.com/forums/articles-engine-fuel/341627-how-check-head-warp.html

How many HG have been torqued to the block?

What HG do you want to run? MLS? If yes have the block and head milled to the right RA.

http://www.dsmtuners.com/forums/cylinder-head-short-block/413772-how-clean-head-gasket-surface.html

http://www.dsmtuners.com/forums/cyl...0613-why-not-let-your-head-belt-surfaced.html

http://www.dsmtuners.com/forums/new...face-4g63t-cylinder-head-mls-head-gasket.html

http://www.dsmtuners.com/forums/cyl...-deck-4g63-cast-iron-block.html#post152790451

http://www.dsmtuners.com/forums/cylinder-head-short-block/362154-how-final-wash-engine-block.html

Also do this to your head.
http://www.dsmtuners.com/forums/newbie-forum/341028-4g63t-head-oil-port-mod.html

Now have the valve springs been tested?

http://www.dsmtuners.com/forums/newbie-forum/341287-how-test-valve-springs.html

http://www.dsmtuners.com/forums/newbie-forum/341209-4g63t-valve-spring-info.html

This should get you going.

 

[canonize-ryda]

I bought the head used and hope it should work for now until I rebuild another one of my heads. I plan on using a graphite head gasket. I think my block has been torqued 3 times that I can think of.

I have decided to pull all the freeze plugs because of my metal shavings everywhere and I also have extras laying around just chillin.