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Author
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Topic: cylinder honing question
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Fastback
Journeyman Posts: 28
From: Livonia,MI
Registered: Dec 2001
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posted 02-01-2002 07:04 AM
   
I want to install a set of moly rings in my motor without sending the block out to the machine shop and was going to put a fresh hone on the cylinders using a flex hone but cant seem to find a 400 grit flex hone. The next step down that is available is a 320 grit. I have searched everywhere for the 400, even calling the manufacture and it has to be ordered at about 3 weeks to get. Any opinions or suggestions?Fastback
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Fastback
Journeyman Posts: 28
From: Livonia,MI
Registered: Dec 2001
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posted 02-01-2002 06:02 PM
Anybody with any opinions? From all the engine pro's at this site I was hoping to get some pro's and con's on 320 vs. 400 grit and straight hone vs. flex hone.
Fastback
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Larry Jennings
Gearhead Posts: 495
From: Redwood City, Ca. USA
Registered: Apr 2000
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posted 02-01-2002 07:05 PM
I wouldn't use one of them dingle ball hones on a Chevy! A hand held straight hone is better but not by a heck of a lot unless your very good at getting a cross hatch pattern and can measure for and remove excess taper provided that doesn't require oversize pistons. My opinion is your wasting a good set of rings unless you give them a chance to seal. Ring seal is paramount! But then again I'm not an engine pro  , let's see what they say.
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SteveLaRiviere
Administrator Posts: 24286
From: Saco, Maine Toys: '70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150
Registered: May 99
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posted 02-01-2002 09:14 PM
Well, I'd say it's a pretty foolish area to save money, but I'd at least order the 400 if that's what the ring manufacturer specifies. I don't mean to be harsh, but I think it's sad when an engine rebuild only lasts 10k miles because someone tried to save a few bucks. I've seen that lots of times.  I have a flex hone, but I haven't used it in probably 20 years. ------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC
MCA Member # 47773
Of all the things I've lost, my mind is what I miss the most.
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mellowyellow
Gearhead Posts: 4608
From: So. Fl.
Registered: Aug 2000
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posted 02-02-2002 06:57 AM
From 3 different people, have been told that the later 5.0 blocks can go a long way without needing a bore in that the rings are better and are a 'softer' quality than the early small blocks. Have listened to this in agreement but deep inside, telling myself, what a crock'a sh*t! Comments, please.
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SundanceKid
Gearhead Posts: 732
From: UT
Registered: Feb 2001
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posted 02-02-2002 01:15 PM
Heres the number for Goodson machine shop tools and supplies: 1 800-533-8010 Also try Atlas shop supplies: 1 800-942-8527 I can't remember for sure but I "think" that they give a 400 grit hone a 620 number....so you might be asking for the wrong number? I may be way off here?
I would check the bores for taper and ridges if there is any I wouldn't hone the cylinder bores....if they are that far gone, you will need more then rings anyway.
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Fastback
Journeyman Posts: 28
From: Livonia,MI
Registered: Dec 2001
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posted 02-02-2002 04:10 PM
I am by no means am trying to scrimp and save money and I didnt know I gave that impression. I always try and do things right the first time. The cylinders are in perfect shape and I just wanted to basicly "break the gaze". I am very limited with machine shops in my area and really did not see a problem to do it myself. I have been taught "the old school ways" and am always interested in ways to improve my knowledge by listening to others share the experience. That is what makes forums like this so great.
Fastback
[This message has been edited by Fastback (edited 02-02-2002).]
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n2oMike
Gearhead Posts: 975
From: Spencer, WV
Registered: Jan 2001
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posted 02-02-2002 04:18 PM
I've always heard good things about ball hones. No, they are no replacement for a good powerhone... like you'd finish-size a good bore job with, but they do a good job of glaze breaking. (At least from what I've read)Goodson, listed above, carries ball hones, and might be worth a call. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
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SundanceKid
Gearhead Posts: 732
From: UT
Registered: Feb 2001
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posted 02-03-2002 12:29 AM
Hey I'm all for flex honeing! I did this to one of my 350's the machine shop told me the engine wouldn't last 25,000 miles! Well, I put almost 100,000 and that engine is still going strong to this day...and that was six years ago. I was just saying check for ridges the taper and out of round just to make sure everything will go together fine.
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