flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 All I'm saying is I wouldn't put the head back on looking like that. Ask any machinist. You don't use a roloc anything on aluminum heads. Supreme no-no. The striations don't look right. And I have built a few motors. Again, temporary. When this motor comes back out the head will get plenty of work done. I'm looking at like a 3 month turn-around, if that. If I do the same for customer's cars with zero problems why is it not good enough for my own stuff? And...AND...if I was using an MLS head gasket I might be worried, barely. Squishy-ass FelPro...nope. She'll be fine. Waiting for my timing cover gasket set and oil pan gasket to finish up. 2 Quote Link to comment
wayno Posted February 23, 2016 Report Share Posted February 23, 2016 I put my left tensioner in exactly the way you have yours installed, and have had no issues. 4 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 Word. Thanks, Wayno. 1 Quote Link to comment
KoHeartsGPA Posted February 23, 2016 Report Share Posted February 23, 2016 Looks good, Gato, I did mine like you and Wayno :thumbup: 2 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 I've got lots of stuff going. Only posting those pics currently. Taking a bunch of stuff to work tomorrow. Waiting on a few packages to arrive. RockAuto and Ratsun peeps. 2 Quote Link to comment
Draker Posted February 23, 2016 Report Share Posted February 23, 2016 Fabric Roloc on the end of my 12V right angle drill after plenty of scraping with a razor blade. You can see one of the pads in the first pic of the head. Cleaned all surfaces of the motor the same way. Yellow roloc bristle disk is what I use. They are basically rubber fingers. I'm not too familiar with the fabric disks. Probably looks worse that it is. 1 Quote Link to comment
Draker Posted February 23, 2016 Report Share Posted February 23, 2016 Chain geometry looks fine to me! 2 Quote Link to comment
HRH Posted February 23, 2016 Report Share Posted February 23, 2016 There are white, yellow, and green rolocs. White is for aluminum, has very little abrasive in it. Yellow is mid level abrasive, green is lots of abrasive. The problem with using those for anything other than cleaning timing covers or something that uses a paper gasket and/or silicone sealant is you don't have a flat edge. If used on a cylinder head mating surface (which needs to be absolutely level) it will introduce peaks and valleys in semi-circular fashion as the operator cannot provide continual pressure and movement to the same level. If you look at a head milling machine, it's a giant "roloc" if you will that moves on an arbor. The head is locked down and the arbor is moved on the head as it's spinning. Because it's attached to a very large, very accurate mill, you can rotate the diamond head over the fresh metal and guarantee a certain degree of clearancing. Not the pogostick action of someone with an angle grinder. It makes a number of passes, so even if there was a high spot or low spot on the grinding stone, it will pass over every inch of the surface with the same results. This is how you avoid head-gasket issues. Did some digging online since I don't have my 3M book on me. White is 120 grit, Yellow is 80 grit, and Green is 36/24 grit depending on size. 1 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 Well, Matt...it's a damned good thing this motor isn't going in your car.It is not a concern. If you'd like to pony up to have it machined...then when I take it out again...and need to have it machined again...see where this is going?Shut up. :poke: 2 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 Did this... 5 Quote Link to comment
q-tip Posted February 23, 2016 Report Share Posted February 23, 2016 Those still in spec? :lol: 1 Quote Link to comment
The Taterhead Posted February 23, 2016 Report Share Posted February 23, 2016 Shit, if you guys don't like how Keith did his, you damn sure won't like the way I do mine. And my shit ain't even going to be temporary. I say that now but we'll see when I get to that point. 3 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 Those still in spec? :lol: Meh. Lol. Temp gig until I can afford the disc conversion. Someone bring the Band-Aids to gatoland. I'm scabbing this thing back on the road. 2 Quote Link to comment
Draker Posted February 23, 2016 Report Share Posted February 23, 2016 I've used the yellow roloc pads on so many heads its not funny. Very common practice in the field as well. Learned it from an old time pro (instructor) while in auto school and done in the shops as well. The key is to not stay in one spot forever and you'll be just fine. And now that I said that, it almost ensures my motor is going to leak. To be fair, bought the head from CL.. so it could be warped already. Roll the dice. From a machinists point of view.. a brisk wind is removing material. Carry on! 3 Quote Link to comment
maltese Posted February 23, 2016 Report Share Posted February 23, 2016 Meh. Lol. Temp gig until I can afford the disc conversion. Someone bring the Band-Aids to gatoland. I'm scabbing this thing back on the road. And, with that, your truck will now be dubbed 'scab'. Change the title, thanks. 3 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 And, with that, your truck will now be dubbed 'scab'. Change the title, thanks. Temp scab. No. 1 Quote Link to comment
MicroMachinery Posted February 23, 2016 Report Share Posted February 23, 2016 Flatscab? 5 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 Ew. Moving on... 1 Quote Link to comment
q-tip Posted February 23, 2016 Report Share Posted February 23, 2016 Green scabs are never a good sign. 1 Quote Link to comment
MicroMachinery Posted February 23, 2016 Report Share Posted February 23, 2016 ...the wound is beginning to smell a little like almonds.. which is not good. 2 Quote Link to comment
flatcat19 Posted February 23, 2016 Author Report Share Posted February 23, 2016 Mmm...almonds. 1 Quote Link to comment
HRH Posted February 24, 2016 Report Share Posted February 24, 2016 You want to send me the head? $40 is all it takes for a mirror finish down to within .001" or so. Can't remember how accurate Sunwest's head milling machine is, but it's pretty accurate. And yes, I am serious, you send it to me, I'll have it cleaned up for you if you like. That's that kind of NAPA guy I am. ;) 2 Quote Link to comment
flatcat19 Posted February 24, 2016 Author Report Share Posted February 24, 2016 You're buying? No. Because it is not as dire as you think. Matt, please stop. Really. I do this for a living. I'm more than comfortable with it. 1 Quote Link to comment
HRH Posted February 24, 2016 Report Share Posted February 24, 2016 Yeah, I know, but I'm anal-retentive. :D I'm sure it will be fine. Sorry Keith. 1 Quote Link to comment
flatcat19 Posted February 24, 2016 Author Report Share Posted February 24, 2016 Is that what you do to women? 1 Quote Link to comment
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