My engine build PICS

[92talontsibryce]

f actually your right the pistons are in backwards but thats how they are suppost to be they are from an EVO 9 and in the evo the blocks are flipped around. The valve wont actually hit the pistons but yea i have already been through this with someone else. But yes this is the way they are suppost to be.

 

[delta448]

Wow, totally missed 1sick91tsi's reply until now.

I won't try and play it off, I honestly don't know how I missed it, but looking at the picture now it's blatantly obvious. Maybe I was ASSuming something about the Evo pistons...? Maybe I just didn't look closely? Don't remember, but either way, I'm man enough to admit I'm embarassed for my mistake.

The pistons are installed correctly for what they are though, I guess that's all that really matters. Shouldn't be any problems with valve contact as long as everything is put into correct mechanical timing. The absence of a quench pad design on the Evo pistons leaves them sitting enough below deck that the smaller exhaust reliefs cause no problems with the intake valves. There's possibly even more valve clearance with the Evo pistons than with the stockers since the exhaust valves are usually at a little more risk from timing belt slippage.

 

[DECODER22]

awesome build i love the evo 9 piston builds

 

[Bmxr152]

Any updates, im going to start throwing together my 6 bolt with evo 9 pistons just like yours. Have you got the car running yet?

 

[dented_coffee]

The block is backwards in that picture....the water pump is sitting on the left if as you can see, insted of the right. meaning your looking at the block backwards. The pistons are in backwards, the deeper valve reliefs will face the exhaust side when you install the head.

f actually your right the pistons are in backwards but thats how they are suppost to be they are from an EVO 9 and in the evo the blocks are flipped around. The valve wont actually hit the pistons but yea i have already been through this with someone else. But yes this is the way they are suppost to be.

evo 9 pistons in dsm block, make shure the dots on the piston head points the the front of the engine. rod tangs should be on the exhaust side. the exhaust relives are backwards compared to the dsm piston. the reason they are put in this way is because of the wrist pin offset.

SORRY BUT HE HAS THEM IN THERE PERFECT.

 

[92talontsibryce]

Ok just an update but yes the car is running and it pulls hard at just 14psi. If your doing a rebuild just go ahead and replace the front case bc after 1k miles my oil pressue is low and the turbo blew bc it wasnt getting the proper lubrication. But other than that everything is going good

 

[crash89]

Are you sure that your front case was the issue?? Do you think its possible that you may have ported the OFH a little to much, so you wouldnt be getting an adequate amount of oil pressure?? Just a thought.

 

[92talontsibryce]

Well to give an update again its definatly been awhile. I have the motor tore apart again and i checked the clearances from the front case and everything checked out perfect. It just didnt make sensce the pump still seemed to be brand new and of coarse I had already ordered another one. But i started searching around to see if i could find the problem. Checked the ofh and there is no way i could have over ported it so i kept searching. After a couple minutes of looking I decided to look at the bs bearings to make sure they were turned 180degrees. looked at the first one and it was blocked off looked at the second one and looky there. The original bearing not turned at all. The shop i got the block from was suppost to block off both bearings. Thats what i actually paid them to do but it looks like they decided to just skit the second one. Well i turned it 180 degrees so now its blocked and i now have two front cases that are basically brand new. Well im going to put her back together and hopefully will hear her run again this weekend. Maybe a video if anyone wants one????

Bryce

 

[dented_coffee]

would like a vid. that would be really nice to hear as someone who has been watching this thread from the start.