The Ford Barn

swanwaco32 · 11-11-2018, 08:41 AM

I have a never been run camshaft with the markings stamped on the end C8RT? It appears to be a regrind. Need help identifying it. Thanks John

19Fordy · 11-11-2018, 10:56 AM

I suspect it's a Canadian 49-51 Mercury (Ford) truck camshaft. 8RT is a truck marking.

tubman · 11-11-2018, 11:51 AM

I concur. And, IF it's a re-grind as you suspect. the only way to determine what it actually is is to degree it.

19Fordy · 11-11-2018, 12:26 PM

Yes, it would be interesting to know what the new "grind" is all about.
Can you check it out? Is there an easy way to check it (on the workbench)
with a dial indicator or micrometer? I would like to check one out also.

scicala · 11-11-2018, 12:32 PM

All you can do on a bench is measure the lobe life with calipers or a micrometer. To check duration and open/close events you would have to do it in the block and use a degree wheel.

Sal

flatjack9 · 11-11-2018, 01:01 PM

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That's right. I have a block set a side specifically for that purpose.

swanwaco32 · 11-13-2018, 08:58 AM

I will check the lift and let you know. Thanks

KiWinUS · 11-13-2018, 09:01 AM

Just check base circle diameter, that will be a good indication if it has been reground

swanwaco32 · 11-18-2018, 08:27 AM

I checked the lift and it is .397

flatjack9 · 11-18-2018, 09:30 PM

Definetely reground.

11-11-2018, 08:41 AM	#1
swanwaco32 Senior Member Join Date: May 2010 Location: KC Posts: 266	8ba camshaft I.D. I have a never been run camshaft with the markings stamped on the end C8RT? It appears to be a regrind. Need help identifying it. Thanks John

11-11-2018, 10:56 AM	#2
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,921	Re: 8ba camshaft I.D. I suspect it's a Canadian 49-51 Mercury (Ford) truck camshaft. 8RT is a truck marking.

11-11-2018, 11:51 AM	#3
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,303	Re: 8ba camshaft I.D. I concur. And, IF it's a re-grind as you suspect. the only way to determine what it actually is is to degree it.

11-11-2018, 12:26 PM	#4
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,921	Re: 8ba camshaft I.D. Yes, it would be interesting to know what the new "grind" is all about. Can you check it out? Is there an easy way to check it (on the workbench) with a dial indicator or micrometer? I would like to check one out also.

11-11-2018, 12:32 PM	#5
scicala Senior Member Join Date: Jun 2010 Location: Detroit suburb, MI Posts: 3,698	Re: 8ba camshaft I.D. All you can do on a bench is measure the lobe life with calipers or a micrometer. To check duration and open/close events you would have to do it in the block and use a degree wheel. Sal

11-11-2018, 01:01 PM	#6
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,526	Re: 8ba camshaft I.D. Sponsored Links (Register now to hide all advertisements) That's right. I have a block set a side specifically for that purpose.

11-13-2018, 08:58 AM	#7
swanwaco32 Senior Member Join Date: May 2010 Location: KC Posts: 266	Re: 8ba camshaft I.D. I will check the lift and let you know. Thanks

11-13-2018, 09:01 AM	#8
KiWinUS Senior Member Join Date: May 2010 Location: Charlotte NC KiWi-L100 available here Posts: 2,954	Re: 8ba camshaft I.D. Just check base circle diameter, that will be a good indication if it has been reground

11-18-2018, 08:27 AM	#9
swanwaco32 Senior Member Join Date: May 2010 Location: KC Posts: 266	Re: 8ba camshaft I.D. I checked the lift and it is .397

11-18-2018, 09:30 PM	#10
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,526	Re: 8ba camshaft I.D. Definetely reground.