Recently got my b20 block back from the machine shop, thought I'd get a second opinion about their work. Should I be concerned about these scrathes and knicks:

#5 Main bearing Journal:
[IMG][http://img175.exs.cx/img175/5723/5cr...al0fu.jpg/IMG]

Deck of Block:
[IMG][/http://img177.exs.cx/img177/7889/deck1zf.jpgIMG]
[IMG][http://img177.exs.cx/img177/4000/deck29za.jpg/IMG]

I didn't really want the block decked because of limited piston to valve clearance, but now I'm thinking about it because the last thing I need is the head gasket not being able to seal up those sratches, especially on top of the cylinder wall. What about the crank journal, should I worry about it, or is just more oil going to get to that bearing? Thanks

 

no but you suck at image tags.

 

lol, yeah first time posting pics, working on it

 

 

Okay there we go above is the #5 crank journal here are the scratches on the deck:
and

 

You can't answer this question yourself?

 

Yeah, I wasn't impressed with the results, but I'm wondering if this will cause serious problems or not, mainly the crank journal, because the block can be decked

 

What exactly did you have them all do to the block? Bore and hone, align bore the crank journals??

Coming from a machinist, what I’m looking at in your pics is hideous!! I would never send anything out like that if I were doing the machining.

If you don’t want to have the blocked decked and you are still worried about the head gasket sealing just use some Honda Bond on the backside of the gasket. I have seen a lot of engine builders do this just to make sure everything seals properly.

 

They machined my main caps so I could run an itr girdle and did a line hone, balance, shotpeened the rods, etc. I need to know if I should worry about the journal or not, and if it's fixable or not

 

I would take it back to them and tell them to do it PROPERLY and get rid of those marks, jesus, thats ******* horrible IMO. im no machinist, but thats defintely a shitty job. put it this way, go back and complain, and make sure they warranty their work. get it in writing, TRUST ME, you DO not want to put this motor together an have it blow up or blown headgaskets, and have no recourse against the machine shop that fucked your build up from day one. i have seen this happen MANY TIMES, where the machine shop fucked up and did a shitty job and you get screwed later on down the road

EDIT: it doesnt even look like its been decked , look at all the material still on top, here is MY BLOCK after it was decked

 

TAKE IT BACK ONLY TO SHOW THEM, DO NOT LET THEM TOUCH IT AGAIN!

They have already proven to be retarded, don't let them deck your block. Request enough money back from them to get your block decked somewhere else.

My .02

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thevanitygroup &raquo;</TD></TR><TR><TD CLASS="quote">TAKE IT BACK ONLY TO SHOW THEM, DO NOT LET THEM TOUCH IT AGAIN!

They have already proven to be retarded, don't let them deck your block. Request enough money back from them to get your block decked somewhere else.

My .02</TD></TR></TABLE>

while i totally agree with what you have said, however, in for a penny in for a pound. if he takes it somewhere else, theyll prob claim it was that machines shop fault instead of their own, i have never seen a machine shop that fucked up a job give back money or admit they were wrong. I too agree, i would be wary to let them do anymore work, theyll prob deck it .60 either way get your money back, make them pay for a new block, or tell them to fix it properly or pay to have someone fix it right

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VtecKiDD &raquo;</TD></TR><TR><TD CLASS="quote">

i have never seen a machine shop that fucked up a job give back money or admit they were wrong. </TD></TR></TABLE>

If a machine shop ***** up, most of the time they have to eat the time & cost of the material for any parts that do not pass the customers quality specs. At least this is how it works for higher production shops.

When it comes to doing work for the average Joe they will try and screw you over if you complain about the work. Because it cost them more $$ to do one or two things for a customer then it does to do a higher production run.

I’m willing to be that those marks were made when they were setting the block up for all the machining ops they needed to perform. The scratches on top of block are hard to avoid in aluminum when setting it up for all the machining operations they need to perform. I hate to say this but sometimes this can not be avoided when working with aluminum. A good shop would have recommended they at least do a light skim cut on the deck to give you a good surface for sealing.

Take the block back to the shop and make them give you their money back. Tell them you are going to file a complete with the department of labor and call OSHA. See what they have to say about that.

I recommend you look around for a different shop if you plan on having any more work done.

 

The chip in the main line looks like it was there before the aline hone was done.A nick that small won't cause any problem anyway.Its just a void behind the bearing shell.To do the main line work the block gets mounted upside down against the deck.Its easy to scratch the deck surface.I'm not making excuses for them but its easy for this to happen.Don't flip-out.Just bring it back and show them.Ask them if they will deck the block the minimum to remove the scratches.I take it your sure it didn't happen bringing it home.Ive seem some nasty looking scratches that were hardly a .001" deep.
Glenn

 

Thanks for the input, btw, they didn't deck the block b/c I didn't want them to b/c of clearance issues, but I still didn't expect that many scratches on it, Do you think the head gasket will be able to seal those scratches or not?

 

I would have had them at least take a skim cut across the block. That would have only been like .003. Scratches are ineveitable in instances like this, although to the extent that they did Id have to wonder what highschol kid did the work.

 

are they ******* retarded and do not know how to work a milling machine? I mean damn.