I use cam stops on all the engines I build... it is an easy way to ensure that the cam stays where you want it.
DD
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| Author: | 62hypapak [ Tue Nov 23, 2010 6:55 am ] |
| Post subject: | Cam stops |
Does anyone have any pictures? What are the advantages? Should they be instaled in a long rod slant? |
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| Author: | Doc [ Tue Nov 23, 2010 8:29 am ] |
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I use cam stops on all the engines I build... it is an easy way to ensure that the cam stays where you want it. DD
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| Author: | Aggressive Ted [ Tue Nov 23, 2010 10:33 am ] |
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Doc, What is the best way to adjust it? Do you have a gap measurement? or it screwed down snug? tight? How do you know when it is set correctly? |
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| Author: | Doc [ Tue Nov 23, 2010 11:26 am ] |
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It is easy to adjust when building the engine. (oil pan is off) Install the cam, timing set & cover, then push the cam "back & forward" while adjusting the ballscrew... until all the clearance (movement) goes away, then back off the screw a 1/4 turn and lock it down, with the lock-nut. If done correctly, you will feel the slightest amount of clearance, much like adjusting the axle bearing end-play on an 8 3/4 rear end. DD |
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| Author: | Polara1974 [ Tue Nov 23, 2010 11:40 am ] |
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I have always thougth that the cam bolt was tigth until zero movement was achieved, when you backoff the ballscrew 1/4 turn why you do that? Once you cancel the movement on the cam and you have the oil pump gear ok with the cam I always thougth that there was no reason to give the cam any movement at all. |
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| Author: | Dart270 [ Tue Nov 23, 2010 11:46 am ] |
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Friction and wear on ball. Lou |
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| Author: | oldblue [ Tue Nov 23, 2010 11:48 am ] |
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Clearance is needed.Otherwise the adjuster will be in constant contact with the cam. |
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| Author: | Polara1974 [ Tue Nov 23, 2010 12:08 pm ] |
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Quote: Clearance is needed.Otherwise the adjuster will be in constant contact with the cam.
And for that here they put bronze in the tip of the bolt, or they even use a rocker adjuster. For both is OK to run zero clearence I think.
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| Author: | madmax/6 [ Tue Nov 23, 2010 12:42 pm ] |
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I do mine like Doc said,then fine tune after motor is broke in.lets the cam and gears settle to be where they want to bee.While the motor is running I screw it in till it just touches,then back it off a titch.Mark |
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| Author: | Reed [ Tue Nov 23, 2010 1:38 pm ] |
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Quote: I use cam stops on all the engines I build... it is an easy way to ensure that the cam stays where you want it.
Is that the screw out of a mechanical rocker arm?
DD |
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| Author: | Fopar [ Tue Nov 23, 2010 1:56 pm ] |
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YES Richard |
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| Author: | Reed [ Tue Nov 23, 2010 2:50 pm ] |
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Sweet. I always wondered how Doc did that. |
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| Author: | slantzilla [ Tue Nov 23, 2010 3:49 pm ] |
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Quote: Quote: Clearance is needed.Otherwise the adjuster will be in constant contact with the cam.
And for that here they put bronze in the tip of the bolt, or they even use a rocker adjuster. For both is OK to run zero clearence I think. |
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| Author: | Joshie225 [ Tue Nov 23, 2010 4:09 pm ] |
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Last time I did this I had access to a lathe so I faced off the cam sprocket bolt and the rocker screw so they came together flat. |
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| Author: | madmax/6 [ Tue Nov 23, 2010 5:49 pm ] |
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I drilled a little cup in the center of the bolt. |
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