valley screen?

[El_Diablo]

anyone ever used a lifter valley screen on any engine? im looking into it and i cant find homemade setups anywhere online, kinda sux because im wanting a little insight and inspiration, i also have no idea what epoxy people use

what are your guys opinions on the subject?

[bszopi]

http://www.groomlakelabs.com/index.php?q=gallery&g2_itemId=1726

[geoffinbc]

Use a high temp 2 part epoxy. JB weld will work excellent.

[3100 MPFI]

Never heard of that. What does it do?

[geoffinbc]

Protects the bottom end should the valvetrain come apart.

[3100 MPFI]

ahh. Makes sense.

Once I start rebuilding my engine, I might look into that further.

[bszopi]

Here is Todd's original post discussing the screens...

http://www.60degreev6.com/showthread.php?t=32443&highlight=screen

[El_Diablo]

i knew i had seen it before but couldn't find anything really, funny that i actually posted on that topic over a year ago, lol

the only issue is getting the screens to stick because if they come loose they can cause just as much damage as they were meant to stop

[3100 MPFI]

hmm. My step-dad knows something about welding aluminum. I might ask him for some ideas for something a bit more permanent. Glad I have a spare block to PRACTICE on.

[El_Diablo]

even when tig'ing there can be splash and so on, i wouldn't really want to weld anything over top of the cam where i couldn't be absolutely sure i got all of the little particles out, even with a junk cam in while welding and washing down after, you cant make sure you got everything

[3100 MPFI]

My step-dad did somethings where he had to be certain that stuff did not go down there.

I asked him about it, and he said that he could remove the cam and put a shield in there, and weld it, then pull the shield back out.

I am going to get a lot more details before I do anything. And trust me..... Before I do this to my GOOD engine, I am going to be certain it is safe to do on my JUNK engine.

[El_Diablo]

hmmm, just wondering, but has anyone here used "lab metal" before?

im interested in maybe using the high temp version...

http://www.alvinproducts.com/Products/Products.asp?ID=2

[geldartb]

hmmm, just wondering, but has anyone here used "lab metal" before?

im interested in maybe using the high temp version...
http://www.alvinproducts.com/Products/Products.asp?ID=2

see the post by superdave on the 3500 plenum. there were a few good suggestions on welding aluminum.

[El_Diablo]

im trying to stay away from actually welding in the lifter valley, what was suggested there was a brazing rod that required 700 some degree heat and who knows how much that rod would splash and splatter, i would be a lot more comfortable with epoxy

[geoffinbc]

Well I wouldn't weld it since you are dealing with cast iron. Welding it without proper pre heat and post heat procedures will cause lots of stresses that can lead to cracks. Plus after the pre and post heat you would have to check the block and make sure noting moved from the heat. If it did you would need machining to correct it.

If it was an aluminum block I would go for it.