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Block skimming
https://www.ausmini.com/forums/viewtopic.php?f=2&t=12299		 Page 1 of 2
Author:  K-Bar [ Tue Oct 18, 2005 11:37 pm ]
Post subject:  Block skimming
what are the reasons for this???

to raise compression??
to make sure the face is flat??

if i did this, wouldnt my pistons rise slightly above the blocks surface..
well thats how it looks for mine..

is that ok if i was going to use a 12G295?
1100 block and pistons.

thanks.

kaden.
Author:  willy [ Tue Oct 18, 2005 11:38 pm ]
Post subject: 
Sometimes it is to true the block.
usually always.
For C/R raising, the head is usually shaved to piss, flat tops, etc.
Author:  poeee [ Tue Oct 18, 2005 11:42 pm ]
Post subject: 
It's used to get them flat.

Usually the case with Mini engines is that after a while and some blown head gaskets, between the cylinders erodes a little, causing it to blow head gaskets more often. This has happened to Rodney, even after a head reco.

When rebuilding an engine, it is stupid not to get it shaved flat. If it wasn't done and causes a problem, then the engine needs full pulling down.

You usually don't take enough off the block for the pistons to poke above.
Author:  K-Bar [ Wed Oct 19, 2005 12:07 am ]
Post subject: 
ahhhh ok....fair enough.

price range for this to be done??
seems like a pricey thing to do..
Author:  poeee [ Wed Oct 19, 2005 12:16 am ]
Post subject: 
I would be guessing the same price as getting the head skimmed. 8)
Author:  willy [ Wed Oct 19, 2005 12:20 am ]
Post subject: 
Head skim = $40
Use that as a guide :)
Author:  drmini in aust [ Wed Oct 19, 2005 6:43 am ]
Post subject: 
Takes a little more work to clamp block up before machining. I usually charge $50 for Mini blocks... :wink:
Author:  manofaus [ Wed Oct 19, 2005 7:55 am ]
Post subject: 
Motor builders like to deck the block to make sure that the head is square to the cylinders as well. Usually done when you open up the bore.
Author:  J_A_M [ Wed Oct 19, 2005 10:19 am ]
Post subject: 
my engine machinist wanted $50 to do mine. I didn't get it done.
Author:  drmini in aust [ Wed Oct 19, 2005 4:42 pm ]
Post subject: 
Bad JAM. Bad....BAD!! :lol: Cheapskate.... :lol: 8) :wink:
Author:  64morris [ Wed Oct 19, 2005 5:14 pm ]
Post subject: 
just make sure you ask them not to machine the tab where the engine no. is...

i had my new engine all built up and put it, got the car home and when i went for mod plate for the seats the guy asks where my engine no. was :roll:

i wont tell you how i got by that one... :wink:
Author:  drmini in aust [ Wed Oct 19, 2005 5:26 pm ]
Post subject: 
64morris wrote:
just make sure you ask them not to machine the tab where the engine no. is...

i had my new engine all built up and put it, got the car home and when i went for mod plate for the seats the guy asks where my engine no. was :roll:

i wont tell you how i got by that one... :wink:

Yeah I NEVER take that pad off. But most shops don't give a stuff..."deck it sir? No problem..." :lol:
Author:  awdmoke [ Wed Oct 19, 2005 5:41 pm ]
Post subject: 
64morris wrote:
just make sure you ask them not to machine the tab where the engine no. is...

i had my new engine all built up and put it, got the car home and when i went for mod plate for the seats the guy asks where my engine no. was :roll:

i wont tell you how i got by that one... :wink:

Magic Marker? :lol:
Author:  64morris [ Wed Oct 19, 2005 8:42 pm ]
Post subject: 
close enough :lol:, but it got me through roadworthy and rego with no problems so im happy
Author:  Rodney [ Fri Oct 21, 2005 10:00 am ]
Post subject: 
I'm getting a block skimmed as we speak. Get it back next week for engine rebuild so will tell you the price when i pick it up.

Cheers
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