Can a sleeve be bent by tapping in a blockguard? I bought a b16a2 block had it bored to .50mm over and then i tapped in a str blockguard. I tried fitting the pistons in and 2 of them wouldnt go in. I took it back to the machine shop and they claim that the 2 sleeves actually bent when i tapped the blockguard in.

Could this be true or was the block that i bought most likely oval shaped to begin with and the machine shop didnt notice it when they were overboring.?

So pretty much i'm fucked $375 for the block and $120 for the block guard. What da hell should i do.

 

if it really is screwed up... get it resleeved?

 

well thats sucks first off. but i am a machnist and you can tell if somthing is out of wack when your boring,drilling,milling. but who knows maybe its tilted ever so slitly. but with your problems sounds pretty noticable. you try to put the pistons in first then the block gaurd ?

 

you're supposed to have the blockguard in before any machining is done

 

 

Help us with your definition of "tapping in" ... different people have different views of tapping and use different instruments for "tapping". If its very slight, the first option is to remove the block guard and hope it is elastic deformation.

Regards,
BigMoose

 

It was really a tight fit. I had to get a piece of wood so that it would tap in evenly. One side went in easily and the other side was a really tight fit. So then the sleeves can actually bend? Great...y da hell did i even try to put that damn blockguard in..****

 

youll be fine thats exactly how mine fit...loose on one side and tight on the other.

 

The machine shop told me that the blockguard bent my sleeves. So 2 of them are oval shaped now. They said the only way they can fix it if i get it overbored .5 more. Which will make it 82mm. The only way i can get those pistons are if they are custom made and that takes too long. Now i'm just looking to get another block which would waste $120 for the blockguard and $375 for the block. But rite now i dunt really care. I just need my car running so that i can get to work and back.