flex hone to deglaze cylinder

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flex hone to deglaze cylinder

Post  7.5L1985GT on June 8th 2013, 5:48 am

What grit ball hone do you guys recommend to finish the cylinder walls with? The motor only has 5 or 6,000 miles since rebuild but it's been sitting for years., doesn't need much. It has chrome moly rings if that makes a difference. Thanks, Lee
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Re: flex hone to deglaze cylinder

Post  dfree383 on June 8th 2013, 8:14 am

5-6000 miles does it even need rings?
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Re: flex hone to deglaze cylinder

Post  7.5L1985GT on June 8th 2013, 9:53 am

They look fine so I wasn't going to change them. Does that mean I don't need the ball hone?
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Re: flex hone to deglaze cylinder

Post  dfree383 on June 8th 2013, 11:09 am

I've done it with out honing them before. Other may not share my opinion on the subject.
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Re: flex hone to deglaze cylinder

Post  jbozzelle on June 8th 2013, 12:33 pm

I've just cleaned them with the big brush from a Moroso kit and put new rings on. My 514 ran fine like this. Bore/finish looked good too. Does it even need rings?


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Re: flex hone to deglaze cylinder

Post  7.5L1985GT on June 8th 2013, 1:12 pm

Thanks for the replies guys. I don't plan to change the rings just thought I should run a hone down there. After some more searching I found a site that sells the hones and listed a bunch of ring manufacturer's recommendations. 400 was the grit for moly's.
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Re: flex hone to deglaze cylinder

Post  dfree383 on June 10th 2013, 2:15 pm

No need to hone unless your replacing the rings...... Don't need to break them in twice.


Last edited by dfree383 on June 10th 2013, 9:50 pm; edited 1 time in total
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Re: flex hone to deglaze cylinder

Post  rmcomprandy on June 10th 2013, 3:59 pm

If you use the old rings and run a ball hone through the bores it will probably "blow-by" for a lot of miles until the bore surface mates to the rings again.

As for OLD bores ... a ball type de-glazing hone may prepare the bores for new ring faces but, it certainly will not make that bore straight & round.

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Re: flex hone to deglaze cylinder

Post  Paul Kane on June 10th 2013, 9:04 pm

7.5L1985GT wrote:What grit ball hone do you guys recommend to finish the cylinder walls with? The motor only has 5 or 6,000 miles since rebuild but it's been sitting for years., doesn't need much. It has chrome moly rings if that makes a difference. Thanks, Lee
"Flex hone" and "ball hone" mean two different hones to me. If this is a street-strip vehicle with just 5000-6000 miles, then a simple ball hone (aka "dingleberry" hone)to break the glaze and/or establish a new cross-hatch should be adequate for seating the re-used rings.

Paul
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Re: flex hone to deglaze cylinder

Post  bbf-falcon on June 10th 2013, 9:30 pm

Paul Kane wrote:
7.5L1985GT wrote:What grit ball hone do you guys recommend to finish the cylinder walls with? The motor only has 5 or 6,000 miles since rebuild but it's been sitting for years., doesn't need much. It has chrome moly rings if that makes a difference. Thanks, Lee
"Flex hone" and "ball hone" mean two different hones to me. If this is a street-strip vehicle with just 5000-6000 miles, then a simple ball hone (aka "dingleberry" hone)to break the glaze and/or establish a new cross-hatch should be adequate for seating the re-used rings.

Paul

X2,I've did that w/good results.

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Re: flex hone to deglaze cylinder

Post  466cj on June 11th 2013, 1:28 am

As other have said if you are not replacing the rings leave the bores alone. If you currently do not have a ring seal problem messing with it can only possibly cause one. If you have a ring seal issue then you need a new set of rings and a proper honing to make sure the bores are true and have the proper finish.

Ball honing is really only to be used on a bore that considered not tapered or out of round and normally used to establish a proper finish for use with new rings. It does require proper technique on the part of the operator. Sometimes if the bore finish looks good it can be better to not hone even when using new rings.

BTW no difference between ball and flex hone are just brand names. Here is a good read on the subject these types of hones:

http://www.brushresearch.com/faq.php

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Re: flex hone to deglaze cylinder

Post  bbf-falcon on June 11th 2013, 3:59 am

My experience w/ball hone was back in the days before all the HoopLah of "don't ever use a ball hone because it will mess up your bores". I was running a 427 mr at the time and it was tired after many runs and needed a rebuild. I purchased a ball hone that was as close to my bore as I could get. I used it as described in directions,by just honing enough to get a nice cross hatch. The rings seated normally w/o issue and the ole FE was running just as strong as always. I'am in NO way promoting the use of one of these hones over a good Machine shop hone job,but I do thing that used properly can do the job in a pinch, especially in a street engine. JMO

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Re: flex hone to deglaze cylinder

Post  7.5L1985GT on June 11th 2013, 6:45 am

I'm sure glad I asked because it looks as though I was about to spend unnecessary $, do more work and possibly cause problems. Thanks again! Lee
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