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To or Not to Replace the Cam Bearings when doing head gaskets and Timing Chain/Oil Pu

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Old Sep 9, 2022 | 12:43 PM
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Johnyakimo1855's Avatar
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Default To or Not to Replace the Cam Bearings when doing head gaskets and Timing Chain/Oil Pu

Just like the title says.

Wifes G4 Disco has 165K on the odometer and I am about to do head gaskets. I picked up the heads, gasket kit from Tillery and I am gonna go ahead and replace the lifters, pushrods, timing chain and oil pump while I am in there. Well I got to thinking (cue the cash regsiter pinging here), with me having it tore down this far should I go ahead and replace the Camshaft (its onle $150 more) and if I do that I should go ahead and do cam bearings. I DO NOT want to pull the engine, so is it possible to replace ALL of them while it is in the Rover without having to go to a Chiropractor afterwards from contorting myself to achieve it? Is there a write up for it? Could use some SOUND advice not a bunch of smarta** opinions. Thanks Gentleman
 
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Old Sep 9, 2022 | 01:20 PM
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can't give advise on whether the engine needs to be pulled or not, however, since you're in there, might as well throw in a Stage 2 Crower Cam or similar. gives a bump in acceleration and power and doesn't affect the idle too much.
 
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Old Sep 9, 2022 | 01:40 PM
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Yes, I had intended on looking into a slightly beefier cam. Thanks for the Post!
 
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Old Sep 9, 2022 | 01:45 PM
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Not possible to do the cam and/or can bearings with the engine in the car unless you remove the radiator and air conditioning condenser. Even the not sure if the front bulkhead is in the way. It would be easier to pull the engine at that point. If you have it torn down that far I would just pull it.
 
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Old Sep 9, 2022 | 06:22 PM
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You can replace the cam with the motor in the truck, just have to get the rad out and lift the AC condenser up out of the way.

You can only replace the first four cam bearings. Number five had to be knocked out the back of the block so the trans is in the way. I would not replace the cam bearings unless absolutely necessary. Even on a rebuild I try not to replace cam bearings unless the block is getting tanked. Getting them back in in the correct orientation and square in the bore is something even pro machine shops get wrong sometimes with the motor sitting on a stand. In the truck, especially that last (#1) bearing since you have nothing to align off of other than your eyeball.
 
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Old Sep 9, 2022 | 06:55 PM
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No need to replace the cam bearings as long as they have not walked. 260k on my lead the fleet truck and still pulls good oil pressure. Alex M is largely on point as well, not recommended for DIY'ers.
 
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Old Sep 10, 2022 | 09:46 AM
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I also am here to express hesitancy for a diy’er to perform this task.

Check out the tech stickies pertaining to rebuilding rover V8’s specifically the must reads portion pertaining to the head gaskets and camshaft write up. There is a ton of information of what to change and in what in order.
 
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Old Sep 11, 2022 | 12:42 PM
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Im not your average DIY'er. Ive rebuilt 15-20 engines and when I have replaced the cam bearings it has been with the block out and having it vatted. The oil pressure is good on the engine. Im curious what model and manufacturer for the "better" cam you guys are running?

Thanks for all the help.
 
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Old Sep 11, 2022 | 04:05 PM
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Originally Posted by Johnyakimo1855
Im not your average DIY'er. Ive rebuilt 15-20 engines and when I have replaced the cam bearings it has been with the block out and having it vatted. The oil pressure is good on the engine. Im curious what model and manufacturer for the "better" cam you guys are running?

Thanks for all the help.
Ope. I will see my way out then.

Here is one place with an upgrade cam kit

https://thewedgeshopstore.com/tws-pe...kits-rover-v8/
 
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Old Nov 24, 2025 | 12:25 PM
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I stayed at a holiday in once....does that count?
 
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