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-   -   reaming sierra upright (http://www.haynes.co.uk/forums/showthread.php?t=2422)

geeman 1st August 2009 09:00 AM

reaming sierra upright
 
well i just saw that i have to ream the sierra uprights at the bottom to allow the maxi ball joint to fit, but wondered what exactly needs to be done, as im not really very clear on what needs to be done in the hole at the bottom of the sierra upright.

Thanks

also i comletely fogot to buy the mushroom inserts:mad:, so where should i buy them from? also who do i contact at mk engineering for buying bits as there nothing roadster related on the site.:confused:

Bonzo 1st August 2009 09:41 AM

The Sierra front hub lower ball joint taper needs reaming to allow the fitmet of the Maxi ball joint.

The hand tool of choice seems to be Axminster tools 19mm handy reamer.

Handy reamer



For other components needed you can try 3GE componets

3GE

geeman 1st August 2009 09:49 AM

hi,
ok, i get it now, jut wondered would a 16mm reamer do do you think or is the hole bigger than that??

RAYLEE29 1st August 2009 11:28 AM

The reamer you need is tapered you need the 19mm one and luckily they are back in stock. be carefull when you order as i accidently ordered two but theyre not at all expensive.
I set mine up in the pillar drill and ran it on a low speed keep checking the fit of the maxi ball joint as you ream the hole.
you want maximum egagement of the taper but dont go too big or youll end up scrapping the upright.
Ray:)

michmark 1st August 2009 11:34 AM

Why can't the original Sierra (Merkur) ball joints be used?

Mark Bates

RAYLEE29 1st August 2009 11:53 AM

good question,I think its because they arent removable from the arms.
Ray:)

geeman 1st August 2009 12:15 PM

Quote:

Originally Posted by RAYLEE29 (Post 18984)
The reamer you need is tapered you need the 19mm one and luckily they are back in stock. be carefull when you order as i accidently ordered two but theyre not at all expensive.
I set mine up in the pillar drill and ran it on a low speed keep checking the fit of the maxi ball joint as you ream the hole.
you want maximum egagement of the taper but dont go too big or youll end up scrapping the upright.
Ray:)

oh, i meant a 16mm tapered reamer. oh well, i may as well buy this anyway, its just delivery is more than the item and i dont need anything else from there.

flyerncle 1st August 2009 04:50 PM

Some have ran a 16mm drill through first,saves some time.

adrianreeve 1st August 2009 05:19 PM

Where are you Geeman? Lots of us have these reamers, so I'm sure we could help you out. I'm in Greenhithe Kent, but I'll happily post it to you to borrow if no-one nearer can help out.

Let me know if you'd like to borrow it.

Cheers

Adrian

geeman 1st August 2009 07:55 PM

Hi Adrian, Im in south croydon, surrey. if i culd borrow a reamer that would be great, but i may just buy one as it is quite a useful tool for deburring holes that have been drilled, but if i could borrow one from someone tempararily it would be really helpful. I plan on taking apart the sierra on tuesday andshould get the ball joints by thursday.

Thanks!!:)


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