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Timing Chain Box Removal

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Old 11-21-2017, 07:26 AM
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jamesjedi
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Default Timing Chain Box Removal

Hi,

Hoping for some guidance. My heads are ready to come off, I just need more room to get past the timing chain box. I have loosened the bolts to the box, but I still need a little more room for the ends of the cam to clear it. Do I need to remove the box, if so what is the process. Thanks for any guidance.
Old 11-21-2017, 08:34 AM
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Rocket Rob
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Yes, you need to remove the chain box to remove the heads. Once you have removed the bolts, it will come off. You may have to over come any gasket sealant. Just be careful prying. The chain boxes are magnesium and therefore soft metal.
Old 11-21-2017, 01:41 PM
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jamesjedi
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Thanks for the reply. All the bolts are off, it is loose, but something is holding it back from coming off.

I have removed the chain tensioner. Do I need to do anything with with the ramps?
Old 11-21-2017, 02:24 PM
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Rocket Rob
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You have to remove the ramps and tensioners too. Then loosen the cam sprocket. Once those are out of the way, the chain box should come off. Sorry its been a few years since I've rebuilt my engine.
Old 11-21-2017, 06:52 PM
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jamesjedi
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Thanks. I have the cam sprocket off, I just need to remove the ramps.

I will have another look tonight. Thanks again.
Old 11-22-2017, 03:48 PM
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cscrogham
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If you remove the rocker gear and camshaft you can take the heads off and leave the cam boxes. Good idea to inspect the ramps anyway tho, they tend to wear grooves where the chain contacts.
Old 11-22-2017, 05:52 PM
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Thanks for all the replies. I got the heads off once the ramps were removed. They use a 10mm 1/4 inch drive socket and an Allan key. Heads came off very easily after that.



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