Any luck with RGM?

Madnorton · Mar 18, 2026

Fast Eddie said:
he didn’t test these though, coz they weren’t available then …

And just how did he test a nitrided layer I wonder. I have had nitrided cams sectioned, polished and checked under a microscope, the only thing that can be said is if the layer is present and the depth of layer.

concours · Mar 18, 2026

Madnorton said:
And just how did he test a nitrided layer I wonder. I have had nitrided cams sectioned, polished and checked under a microscope, the only thing that can be said is if the layer is present and the depth of layer.

Rockwell C hardness tester.

Madnorton · Mar 19, 2026

concours said:
Rockwell C hardness tester.

Really - C hardness test for a nitride layer, if it was that simple then I would have done that. OK for a through hardened or case harden with a deep depth, but the trick is to measure the case hardness and not distort the reading if it breaks through the case to the underlying material. Nitriding case hardening and the case hardness it gives is well understood and the only real detail is case depth which can only be measured in section.

concours · Mar 19, 2026

Madnorton said:
Really - C hardness test for a nitride layer, if it was that simple then I would have done that. OK for a through hardened or case harden with a deep depth, but the trick is to measure the case hardness and not distort the reading if it breaks through the case to the underlying material. Nitriding case hardening and the case hardness it gives is well understood and the only real detail is case depth which can only be measured in section.

Simmer down.

I was simply answering what I witnessed dynodave doing. I will not debate validity of his test process.

My original comment was a poke in the ribs to Nigel's jewelry post. The aesthetic musing of a camshaft.

"The only problem with the AN cams is they’re so pretty it seems a shame to put in your engine !!"

I then responded and agreed with a thumbs up to Nigel's comment about having not tested the cam pictured.

I never heard back about the gear & mainshaft I handed you at the INOA NH Rally, any news?

Carry on, you're doing a great job.

SteveBorland · Mar 19, 2026

concours said:
Simmer down.

I was simply answering what I witnessed dynodave doing. I will not debate validity of his test process.

I was also wondering about that, I read your post as a reply to how to measure it.
Sometimes, clarity does suffer from brevity, although some people on this forum will _never_ have that problem

Schwany · Mar 19, 2026

Speaking of clarity... How did this turn into a cam and metallurgy thread? Nevermind, I forgot where I was for a second.

Cuppy · Mar 19, 2026

Back on thread topic....I have reccieved two return emails from Junior since last Sarurday in an attemp to order a narrow ham can filter kit. I'm hoping a few more emails and another weeks time and I will maybe have one on order.

Cuppy · Mar 23, 2026

Cuppy said:
Back on thread topic....I have reccieved two return emails from Junior since last Sarurday in an attemp to order a narrow ham can filter kit. I'm hoping a few more emails and another weeks time and I will maybe have one on order.

Order successfully placed today. Contact via the nortonrgm@gmail.com worked, albeit slow.

stanthomas · Mar 28, 2026

RGM status update

dave M · Tuesday at 5:44 PM

I've had no luck ordering from RGM, I tried three different e-mail addresses - including the one given in the status update - all were flagged as undeliverable. I tried calling several times, factoring in the time difference, but it went straight to the message recording feature. I've been a customer of theirs for a long time and have been very satisfied with their service, but it has simply become too hard to buy from them. I might try to fax them my order as a last ditch attempt. Watch this space.

Jerry Doe · Tuesday at 9:00 PM

I think that broadcasting their email all over the place is a mistake. The bots have already got it by now and they will be overwhelming spam, junk and it will effect normal email operation. The best solution is to create a basic online secure form so customers use that. Only takes a short time to put a form together, so that email is protected. In fact they will be needing a new email soon probably. I know this because I owned / managed a web hosting tech company for decades. That’s what I would do anyway, until they have a new online store operational.

SteveBorland · 2026-04-22T09:17:44-0600

RGM seem to have a basic web page up now, it's a catalogue of their stuff but no shopping basket yet.
I'm surprised that they have not added an explanation as the first thing that pops up.

marinatlas · 2026-04-22T12:45:33-0600

SteveBorland said:
RGM seem to have a basic web page up now, it's a catalogue of their stuff but no shopping basket yet.
I'm surprised that they have not added an explanation as the first thing that pops up.

That's what I used decades ago , and then I phoned to them , no email or computer , just good old time and we were happy ...

Mark Savage · 2026-04-22T13:15:11-0600

marinatlas said:
That's what I used decades ago , and then I phoned to them , no email or computer , just good old time and we were happy ...

Not RGM but I wouldn’t want to go back to the old days of sending an SAE for a price list to dealers, await it’s return to then place an order with a “Postal Order” and hope something turns up.

Any luck with RGM?

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