Cam Holder Tool

B

blackcar

Member
This fall I will be replacing chains, tensioners, guides and sprockets.

Does anyone have any clever methods and suggestions for locking the DOHC cams so they don't move?

Thanks
 
blackcar said:
This fall I will be replacing chains, tensioners, guides and sprockets.

Does anyone have any clever methods and suggestions for locking the DOHC cams so they don't move?

Thanks
Click to expand...
There's a tool for that. I got mine from Amazon a few years ago.

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I've built a few 4V, 2V engines, currently building a V10.

With that said I have Never, and I mean Never, used a cam hold down tool.

This use to be the place for tech, not much as of lately
 
I decided to do with out cam tool. As long as I keep the markings all lined up and dont move anything clockwise I should be okay.
I did a SOHC 10 years ago no issues.
 
Step 1- Bring the motor to TDC on #1 before you start the tear down.

Afterwards everything else is as simple as hanging chain.

No specialty tools needed. No matter what the interweb tells you.
 
It's personal preference. I chose to buy the OTC kit. I put new cam gears on and liked the tool that clamps the two cams together so I could torque the camgear bolt.
 
There's nothing wrong with using the proper tools for any job. I have used the OTC 6498 kit a ton of times over the years and it always works great.
For setting up stock cams to stock specs you don't really need the tools, but if you have aftermarket cams, want to measure the cams, advance or retard the timing, or even just want to degree the stock cams, the hold down tools make things a lot easier.
 
massacre said:
There's nothing wrong with using the proper tools for any job. I have used the OTC 6498 kit a ton of times over the years and it always works great.
For setting up stock cams to stock specs you don't really need the tools, but if you have aftermarket cams, want to measure the cams, advance or retard the timing, or even just want to degree the stock cams, the hold down tools make things a lot easier.
Click to expand...

I read a few reviews of the OTC 6498 on Amazon, and a few mentioned that two are needed to properly keep the cams stationary!

That seems quite contrary to many other 5 star reviews, and experience mentioned in this thread - can someone comment with further details, and photos?
 
The kit only has 1 clamping tool to "clamp" the intake and exhaust cams together. The clamping tool would allow you to index the 2 cams and them lock them together. But there are 2, non-adjustable, indexing/locking tools that fit in the back end of the cams. These only work for stock indexing.
 
musclemerc said:
I've built a few 4V, 2V engines, currently building a V10.

With that said I have Never, and I mean Never, used a cam hold down tool.

This use to be the place for tech, not much as of lately
Click to expand...
You could make a clamping tool cheap. Click the link below. Buy 1 set for each head. Make a new bar with some flat steel stock at Menards and drill 4 holes to correctly space the clamping blocks. I just bought a set for $20 so I can make a second holding tool.

https://www.amazon.com/dp/B0B3XV39Y...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=
 
I made my own out of flat stock but that was for aftermarket cams. They should all come with the hex fitting on them!


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How are the cam sprocket bolts torqued, without using cam locking clamps? Does ARP have replacement sprocket bolts, or should I use Ford's TTY / torque-to-yield replacements?

I have watched many youtube videos on DOHC chain replacements, and not one has explained how to hold the cams when torqing - more than one installer has mentioned that no special tools are even needed! One video did mention holding the cams in the middle, but didn't show how, or any details.

The whole job doesn't really look like a big deal, at all.
 
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