Camshaft Camshaft Camshaft

Camshaft Camshaft Camshaft

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TVRTRICEY

Original Poster:

141 posts

169 months

Thursday 10th December 2015
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Hello again,
Im back on the rebuild, finally. Ive managed to remove the two hex core plugs that reveal the galleries bellow the tappets. Im struggling to remove some of the smaller interference fitted ones however. Any help or guidance will be much appreciated. Once Im happy the galleries are good with an airline etc. It will be going off for a final hot wash and all the cam bearings will be replaced. Then I can start building!

Many Thanks in advance.

Tricey

TVRleigh_BBWR

6,552 posts

212 months

Thursday 10th December 2015
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drill a hole and then use a puller. or use a expanding bolt and a slide hammer.

Sardonicus

18,928 posts

220 months

Thursday 10th December 2015
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TVRleigh_BBWR said:
drill a hole and then use a puller. or use a expanding bolt and a slide hammer.
what Leigh said that how I remove them, it's important you do remove them however

TVRTRICEY

Original Poster:

141 posts

169 months

Thursday 10th December 2015
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Good, these were going through my head too but good to have it confirmed.

Many thanks!

TVRTRICEY

Original Poster:

141 posts

169 months

Thursday 3rd March 2016
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Update for anyone is interested...

Block is back from the machine shop - New cam bearings fitted, Hone and Clean... Looks a lot better than it did before!



Should have all pistons back in tomorrow too



Ended up getting a 3.9 Cam to go in so looking forward to seeing how that performs smile Got nearly all the bits I need to do the engine job now so bring on the summer deadline!

TVRTRICEY

Original Poster:

141 posts

169 months

Friday 22nd July 2016
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Some information some of you may find interesting.
So back onto the engine rebuild recently (trying to finish the car next weekend for Silverstone Classic) and today after put the heads on and rebuilding the rockers with new shafts, for the first time I could turn the engine over and see what was what. All good.

Doing a lot of research into building rover v8's I wanted to shim the rocker posts so bought a kit to do this. It's SUCH an imprecise science to measure between the top of the internal part of the lifter and the bottom of the cir clip. With no shimming at all (as if from factory), the tolerance I could measure came to a whopping 220 thou vs the 40-60 recommendation from the 'real steel' kit. I should at this point mention the heads are stage 3 and must be skimmed a fair bit. It took a fair bit of shimming under the rocker posts to get the tolerance in sight.

when I took the engine apart due to the huge cam failure I was unsure as to why it had happened at the 81k mileage although mileage. From what I could gather the stage 3 heads were fitted at 79k, so had in theory only been on the engine for 3K miles.

I really think that the lack of shimming meant the rockers and pushrods were pushing down with far more force than needed onto the followers and cam which in turn bought on premature wear on them.

TVRleigh_BBWR

6,552 posts

212 months

Friday 29th July 2016
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as per facebook, using more than 50-60 thou of shims is not a good idea, and can cause the rocker tips to break, a lot of people say you should never use any shims.
Ideally you should fit adjustable rods or rockers. and is the only option if you have 220 thou gap but that seems very extreme.