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Crank scrapers ...who is running them ?

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Old 03-27-2008, 03:40 PM
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Default Crank scrapers ...who is running them ?

I found them on here

http://www.crank-scrapers.com/Honda-Acura.html

Who is running them and is it worth it on an all motor application ?
Old 03-27-2008, 04:52 PM
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Default Re: Crank scrapers ...who is running them ? (lude98SH)

Yes,but it takes more work than most here are ready to do.
Old 03-27-2008, 05:02 PM
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Default Re: Crank scrapers ...who is running them ? (DonF)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DonF &raquo;</TD></TR><TR><TD CLASS="quote">Yes,but it takes more work than most here are ready to do.</TD></TR></TABLE>

Such as? Or would it be easier running a dry sump system?
Old 03-27-2008, 05:08 PM
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Default Re: Crank scrapers ...who is running them ? (all-mtr-teg)

https://honda-tech.com/zerothread?id=1040680&page=2

on there it looks like there are no drawbacks to it. It seems fairly easy to install. Why would it be alot of work ?

Has anyone used the teflon ones ?
Old 03-27-2008, 05:31 PM
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Default Re: Crank scrapers ...who is running them ? (all-mtr-teg)

I'm purchasing the teflon one for my current build.

Old 03-28-2008, 06:44 AM
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Default Re: Crank scrapers ...who is running them ? (Runnerdown)

sound's like a good thing but it would suck if a peice teflon broke off and got stuck in the oil pickup screen
Old 03-28-2008, 06:52 AM
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Default Re: Crank scrapers ...who is running them ? (lude98SH)

It's a lot of work because you have to fit it to the crank,it's not a drop in piece.
A dry sump is something completely different altogether.
Old 03-31-2008, 05:52 PM
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Default Re: Crank scrapers ...who is running them ? (Fkned)

why does it not fit perfect ?
Old 03-31-2008, 06:49 PM
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Default Re: Crank scrapers ...who is running them ? (lude98SH)

because its too expensive for the manu to make one fit every possible crank/rod combo,so they make a one size and you fit it to your needs.If you want it you can always take it to Mahler Engine Service in Collingdale 610-522-9344.I'm from around you and he's the best in the area imo.
Old 03-31-2008, 07:13 PM
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Old 04-01-2008, 08:27 AM
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Default Re: Crank scrapers ...who is running them ? (DonF)

Is it just a case of trial fitting, removing some material, trial fitting again and so on until the scraper clears the crank/rods?
Old 04-01-2008, 08:39 AM
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Default Re: Crank scrapers ...who is running them ? (hybrid2007)

i would assume that you would have to take side loads in to effect also
Old 04-01-2008, 08:48 AM
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Default Re: Crank scrapers ...who is running them ? (alterdcreations)

you have to install it and trim the whole thing to be just the right distance from the crankshaft counter weights. very time consuming
Old 04-01-2008, 08:49 AM
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Default Re: Crank scrapers ...who is running them ? (alterdcreations)

interesting ...... from what ive read SRT-4s run them stock. Wouldnt that be alot of work ?
Old 04-01-2008, 09:04 AM
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Default Re: Crank scrapers ...who is running them ? (lude98SH)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hybrid2007 &raquo;</TD></TR><TR><TD CLASS="quote">Is it just a case of trial fitting, removing some material, trial fitting again and so on until the scraper clears the crank/rods?</TD></TR></TABLE>Yes,but it has to be the right distance from the rotating assembly.To close and it hits,to far and it does nothing.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lude98SH &raquo;</TD></TR><TR><TD CLASS="quote">interesting ...... from what ive read SRT-4s run them stock. Wouldnt that be alot of work ? </TD></TR></TABLE>Not so much if you only have one combo to work with.
Old 04-03-2008, 06:18 AM
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Default Re: Crank scrapers ...who is running them ? (Fkned)

But with a teflon plate added on the scraper, I thought the idea was that the teflon should be in slight contact with the crank? I mean, it will wear down a bit anyway so rather be a bit tight at first to ensure that the distance is not too big. The whole point in using a teflon insert beeing able to run a tighter clearance on the scraper, thus working a bit better.

With a steel scraper I can understand the need for a small clearance, otherwise the engine would make all kinds of interesting noises when running, and shavings would end up in the oil.
Old 04-03-2008, 06:38 AM
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Default Re: Crank scrapers ...who is running them ? (Pondus)

Don, have you found any noticable gains you would like to share?
Old 04-03-2008, 09:47 AM
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Default Re: Crank scrapers ...who is running them ? (lohatch)

my question would be how far do you have to position the scraper from the crank journals ? Because obviously closer is better.
Old 04-03-2008, 01:26 PM
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DonF saw around a 1.5-3% gain on a B16. B19coupe saw a 1.5-2% gain on a D16.
Old 04-03-2008, 01:53 PM
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Default Re: Crank scrapers ...who is running them ? (alterdcreations)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alterdcreations &raquo;</TD></TR><TR><TD CLASS="quote">i would assume that you would have to take side loads in to effect also</TD></TR></TABLE>

what does this even mean?
Old 04-03-2008, 02:12 PM
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Default Re: Crank scrapers ...who is running them ? (Combustion Contraption)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">

what does this even mean?</TD></TR></TABLE> Maybe heat expansion? Figuring .002 main and .002 rod you would have a deflection of .004 devided by 2-=.002 of course the crank may deflect by .003, so we are up to .005 befrore heat expansion.
Old 04-06-2008, 06:49 AM
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Default Re: Crank scrapers ...who is running them ? (Combustion Contraption)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">

what does this even mean?</TD></TR></TABLE>

take it easy man i think he drives a dsm.
Old 04-06-2008, 07:10 AM
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Default Re: Crank scrapers ...who is running them ? (93-lsvtec-eh2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93-lsvtec-eh2 &raquo;</TD></TR><TR><TD CLASS="quote">

take it easy man i think he drives a dsm.</TD></TR></TABLE>
LOL.

I'm building a motor myself and was considering one as well but on hard conering would it starve the bearing ? I know the whole purpose is to keep weight of the oil of the rotating assembly and such. Also how would this work out with a baffled pan and scrapper combo ? would it starve the bearings?
Old 04-06-2008, 09:15 AM
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Default Re: Crank scrapers ...who is running them ? (AllMotoRex)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AllMotoRex &raquo;</TD></TR><TR><TD CLASS="quote">
LOL.

I'm building a motor myself and was considering one as well but on hard conering would it starve the bearing ? I know the whole purpose is to keep weight of the oil of the rotating assembly and such. Also how would this work out with a baffled pan and scrapper combo ? would it starve the bearings?</TD></TR></TABLE>

bearing starvation from a scrapper? please use the logic on this one... seriously...
Old 04-06-2008, 01:59 PM
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Default Re: Crank scrapers ...who is running them ? (Chris Tune)


i am thinking that you have to give at least .019 of clearence for the endplay of the crank and then .040 on the rods. assuming but i have never used one before
h /f series


Modified by alterdcreations at 3:10 PM 4/6/2008


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