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Kingpin replacement using a honing tool?
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Luegolover



Joined: 02 Mar 2017
Posts: 15
Location: London

PostPosted: Sun Aug 06, 2017 11:06 am    Post subject: Kingpin replacement using a honing tool? Reply with quote

Hello,

I have a Healey 100 that needs new kingpins. I have the parts but not a reaming tool. During a routing search of youtube I discovered a chap who used a drill mounted honing tool to enlarge the bush instead of a reamer. Does anybody know if this is a viable route forward? This is the type of thing:

https://www.machinemart.co.uk/p/draper-56244-25mm-57mm-cylinder-hone/

Alternatively, are there places I could borrow the relevant tool from to do this job? (I live in north London).

Regards
Steve[/img]
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Kleftiwallah



Joined: 27 Oct 2016
Posts: 222
Location: North Wiltshire

PostPosted: Sun Aug 06, 2017 11:58 am    Post subject: Reply with quote

I know this tool as a "Glaze buster". Used to' bust the glaze' on cylinder walls before fitting a piston with new rings.

I think it may work. Cheers, Tony. Smile
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ukdave2002



Joined: 23 Nov 2007
Posts: 4100
Location: South Cheshire

PostPosted: Sun Aug 06, 2017 7:22 pm    Post subject: Reply with quote

You may find that new king pin reamears are available for your Healey, they are for MGB's around £120.

Otherwise most folk use an adjustable reamer with a pilot.

Dave
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PAUL BEAUMONT



Joined: 27 Nov 2007
Posts: 1281
Location: Barnsley S. Yorks

PostPosted: Mon Aug 07, 2017 12:54 pm    Post subject: Reply with quote

I think you need a pilot or the bushes will not be aligned and will wear very quickly. As Dave says, an adjustable reamer is the usual route. These appear from time to time on eBay.
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peter scott



Joined: 18 Dec 2007
Posts: 7113
Location: Edinburgh

PostPosted: Mon Aug 07, 2017 3:36 pm    Post subject: Reply with quote

The hone that you identified is very much larger than any king pin bush. As already stated it is for honing engine bores perhaps 2 or 3" diameter.

You need a pilot reamer to get correct alignment of the upper and lower bushes.

Peter
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alastairq



Joined: 14 Oct 2016
Posts: 1950
Location: East Yorkshire

PostPosted: Mon Aug 07, 2017 9:22 pm    Post subject: Reply with quote

http://www.taylorandjones.co.uk/?page_id=82

Above is an example of what's available.

Adjustable reamers can be had much cheaper elsewhere, however, I found only the makers stocked the appropriate pilots.

The bushes may be the split sort. If using an adjustable reamer, then only make tiny adjustments until done.
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47Jag



Joined: 26 Jun 2008
Posts: 1480
Location: Bothwell, Scotland

PostPosted: Tue Aug 08, 2017 3:59 pm    Post subject: Reply with quote

Steve,

The hone you have shown is for wheel cylinder refurbishing. I doubt it you would get the required finish using that. A bodge....yes.

Art
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Luegolover



Joined: 02 Mar 2017
Posts: 15
Location: London

PostPosted: Wed Aug 09, 2017 2:16 am    Post subject: Reply with quote

I've been a bit of a donut. Having read the first few comments I went and did some more research and found that I hadn't done the most obvious bit of hunting. I looked at the Ahead 4 Healey's website and discovered that they will rent a proper reamer for £10/day. Not sure why I hadn't looked earlier really, many apologies for wasting your time. A4H charge you for the tool and then refund it when returned undamaged. I presume that the £10 is charged for the postage time so it makes it a bit of an expense but a somewhat sensible and manageable solution.
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Paul fairall



Joined: 17 Nov 2016
Posts: 429
Location: North west Kent

PostPosted: Tue Sep 12, 2017 2:43 pm    Post subject: Reply with quote

peter scott wrote:
The hone that you identified is very much larger than any king pin bush. As already stated it is for honing engine bores perhaps 2 or 3" diameter.

You need a pilot reamer to get correct alignment of the upper and lower bushes.

Peter
peter, would leaving one old bush in and reaming a new one first then pressing in the other and reaming that one the same size as the first, then reaming both to size together work.
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