sleeving with a partial fill?
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sleeving with a partial fill?
I have a block here, it MAY need one sleeve, but I won't know for sure until its bored. It has a mark high up in one cylinder wall, its "iffy" if it will clean up at +030. I plan to do a partial fill. So there's basically two ways I can go about this.
1) bore it +.030, and fill before I hone
2) Fill first, bore it +030, HOPE it cleans up, and if it doesn't, have to install a sleeve in a partially filled block.
Its a 351C, I will be filling it half way up the core plugs, fill material will be Masterflow 885. Thoughts? Pluses and minuses to both approaches?
1) bore it +.030, and fill before I hone
2) Fill first, bore it +030, HOPE it cleans up, and if it doesn't, have to install a sleeve in a partially filled block.
Its a 351C, I will be filling it half way up the core plugs, fill material will be Masterflow 885. Thoughts? Pluses and minuses to both approaches?
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Re: sleeving with a partial fill?
Is there a reason you can not start with a block that might not need a sleeve?
Anyway, bore and/or sleeve it before doing the fill. Hone after the filler is cured.
Doing a 1/2 fill you probably won't have any issues but you need to watch water passages in filling Clevelands to prevent water blockage
Anyway, bore and/or sleeve it before doing the fill. Hone after the filler is cured.
Doing a 1/2 fill you probably won't have any issues but you need to watch water passages in filling Clevelands to prevent water blockage
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Re: sleeving with a partial fill?
I say fill it before you have it bored because it will help stabilize the cylinder walls any way,plus it you bore it after it has been filled it may distort the cylinder walls slightly.There is a sight called 351c.net on Facebook with plenty of cleveland people doing the same thing.
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Re: sleeving with a partial fill?
Sleeve it, then fill it, wait at least 7 days for the fill to cure then bore it.
A sleeve done right is just as good if not better than the parent metal.
If you have to sleeve it after filling & boring it you'll struggle to get the bores either side of the sleeve round, may as well sleeve it now & know it's good.
Being a clevo bore it only .020" if you can.
A sleeve done right is just as good if not better than the parent metal.
If you have to sleeve it after filling & boring it you'll struggle to get the bores either side of the sleeve round, may as well sleeve it now & know it's good.
Being a clevo bore it only .020" if you can.
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Re: sleeving with a partial fill?
I think, in the end result, it will make very little difference...falcongeorge wrote: ↑Tue Mar 17, 2020 7:40 pm I have a block here, it MAY need one sleeve, but I won't know for sure until its bored. It has a mark high up in one cylinder wall, its "iffy" if it will clean up at +030. I plan to do a partial fill. So there's basically two ways I can go about this.
1) bore it +.030, and fill before I hone
2) Fill first, bore it +030, HOPE it cleans up, and if it doesn't, have to install a sleeve in a partially filled block.
Its a 351C, I will be filling it half way up the core plugs, fill material will be Masterflow 885. Thoughts? Pluses and minuses to both approaches?
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Re: sleeving with a partial fill?
Have you tried to find a decent std bore cleveland block lately, even with 7 good holes? Not easy.
Last edited by falcongeorge on Wed Mar 18, 2020 11:20 am, edited 1 time in total.
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Re: sleeving with a partial fill?
Thanks guys. I think I will bore it, fill, hone. Knight makes a good point, I will think about that. I will really give it a close inspection, maybe just go ahead and sleeve the bad hole right from the beginning, but the consensus is bore, sleeve if necessary, then fill, and that's the way I was leaning before I asked.
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Re: sleeving with a partial fill?
I'm going halfway up the core holes because the OEM block drains are just above that line(convenience), the bottom of the head bolt bosses are above that. The issue with blocking flow in clevelands occurs when you fill past the bottom of the head bolt bossesSupStk wrote: ↑Tue Mar 17, 2020 10:39 pm Is there a reason you can not start with a block that might not need a sleeve?
Anyway, bore and/or sleeve it before doing the fill. Hone after the filler is cured.
Doing a 1/2 fill you probably won't have any issues but you need to watch water passages in filling Clevelands to prevent water blockage
Re: sleeving with a partial fill?
Have a standard 351c block, it's yours for $300 plus the ride.falcongeorge wrote: ↑Wed Mar 18, 2020 11:13 amHave you tried to find a decent std bore cleveland block lately, even with 7 good holes? Not easy.
Monty Frerichs
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Re: sleeving with a partial fill?
Now that we are on the subject how do you guys go about doing the block fill? Pour one side while the deck is flat and parallel to the floor? Wait 24 hours to do the other side?
I ask because I may do a short fill in my SBM as it's almost it's turn at the machine shop.
I ask because I may do a short fill in my SBM as it's almost it's turn at the machine shop.
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Re: sleeving with a partial fill?
Thats the way I do it. After the pour go over the block with an air chisel using a blunt bit. That works any air bubbles and pockets out. Also torque a head on the side thats just been filled and leave it on until the filler is cured.Krooser wrote: ↑Wed Mar 18, 2020 1:55 pm Now that we are on the subject how do you guys go about doing the block fill? Pour one side while the deck is flat and parallel to the floor? Wait 24 hours to do the other side?
I ask because I may do a short fill in my SBM as it's almost it's turn at the machine shop.
Monty Frerichs
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Re: sleeving with a partial fill?
Hahaha! I'm in Canada, "the ride" will be about $500!! Thanks for the kind offer though.SupStk wrote: ↑Wed Mar 18, 2020 1:41 pmHave a standard 351c block, it's yours for $300 plus the ride.falcongeorge wrote: ↑Wed Mar 18, 2020 11:13 amHave you tried to find a decent std bore cleveland block lately, even with 7 good holes? Not easy.
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Re: sleeving with a partial fill?
Pretty much same here, except they say not to vibrate Masterflow 885 beyond some tapping with a hammer.SupStk wrote: ↑Wed Mar 18, 2020 3:07 pmThats the way I do it. After the pour go over the block with an air chisel using a blunt bit. That works any air bubbles and pockets out. Also torque a head on the side thats just been filled and leave it on until the filler is cured.Krooser wrote: ↑Wed Mar 18, 2020 1:55 pm Now that we are on the subject how do you guys go about doing the block fill? Pour one side while the deck is flat and parallel to the floor? Wait 24 hours to do the other side?
I ask because I may do a short fill in my SBM as it's almost it's turn at the machine shop.
Re: sleeving with a partial fill?
If you are going to fill a Cleveland block do it until the mix runs out of the front water pump outlets with the block levelled.
Have the block cleaned ,fill it then do the final machining.
Have the block cleaned ,fill it then do the final machining.