anyone with a lathe near Glasgow (EK)?

[foxy99]

I want a simple drift made-up, to remove the valve-guides on Honda 50cc head.

The guides are approx 3cm long with ID of 5mm and OD of 10mm.

So I'd like something of 10mm diameter that could 'follow' the guide out of the head (instead of stopping short when the bottom of the guide gets flush with the head) and with a 'nose' that would fit inside the guide to centre it and keep things snug during the drifting operation.

To give it more oomph I'd like the body of the tool to be bigger than 10mm.

So I'm thinking start with a 20mm diameter steel bar. That would be your handle. Turned down to 10mm for twice length of guide (< or = 6cm) with a 5mm nose on it for sitting inside guide (say 2 cm).

I've no idea how much a firm would take for turning the steel bar down but if it's charged by the mm could go down to say 17mm bar or 15mm but am thinking the smaller you go the less effective the drift becomes.

Any thoughts?

[woodysnr]

You could try a company in E-K who will do this spoke with the owner and he said send him a drawing over with what you want done .Cost will be approx. £35-45 dependent on the spec .

[e-mail]

[Hamish400]

The force to remove the guide comes from the weight and speed of movement of the hammer you are using. The drift merely transfers this force to the guide, so ithe drift only needs to be a size appropriate to the guide plus large enough for ease of handling.
Alternatively the drift could be used with a hydraulic press.
I am in Stewarton,have a lathe at my home, and could easily make a drift for you. Pls contact me if you do not find someone more local to you.

Rgds
Hamish

[foxy99]

Hamish400 said:

The force to remove the guide comes from the weight and speed of movement of the hammer you are using. The drift merely transfers this force to the guide, so ithe drift only needs to be a size appropriate to the guide plus large enough for ease of handling.
Alternatively the drift could be used with a hydraulic press.
I am in Stewarton,have a lathe at my home, and could easily make a drift for you. Pls contact me if you do not find someone more local to you.

Rgds
Hamish

That's brilliant Hamish

I've actually been in Stewarton a few times recently, for small gigs at a pub there. Bar51?

You're not that far away so I'll order my material and let you know when I can bring it over.

Thanks

[foxy99]

woodysnr said:

You could try a company in E-K who will do this spoke with the owner and he said send him a drawing over with what you want done .Cost will be approx. £35-45 dependent on the spec .

[e-mail]

Many thanks woodysnr.

I'll bear that in mind as it's handy to have someone local

[Hamish400]

Hi Graham,
I have various scrap bits of steel bar that will probably do for material to make a drift. What overall length would you need?

Rgds
Hamish

[Hamish400]

Hi Graham,
I have various scrap bits of steel bar that will probably do for material to make a drift. What overall length would you need?

Rgds
Hamish

[woodysnr]

Glad you got it sorted ,have known Hamish for years through car clubs he will sort you out .
Brian

[Hamish400]

Graham, I have e-mailed you my contact phone nr.

Rgds
Hamish

[Hamish400]

Graham,
I do not think my e-mail to you worked. can YOU please e-mail ME via my profile.

Rgds
Hamish