Re: Lash caps
[Re: drag440]
#196024
01/17/09 01:25 PM
01/17/09 01:25 PM
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Joined: Nov 2003
Posts: 6,293 Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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People use them to correct rocker geometry. In some cases they are no way around not using them, like when the rocker arm hits the retainer in certain Hemi projects Some people use them when the push rods are to short, no matter what it does for geometry cause, lash caps are $25 vs $100-$200 for push rods..
Last edited by Rapid_Transit; 01/17/09 01:26 PM.
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Re: Lash caps
[Re: drag440]
#196026
01/17/09 01:54 PM
01/17/09 01:54 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
When do you need lash caps? I have always used them on any engine with .650 lift and over. Lately I've had a lot engines come in my shop with .700+ lift with no lash caps and no problems. I used to see lash caps on engines all the time and now I hardly ever see them. Is it still good to use them anyways or just overkill?
With .700+ lift your going to see roller rockers so you wont see the wear like you would without the rollers(people use to use them to protect the vavle stems and/or correct for the mismatch geometry). I have used them in the past BUT I prefer not to, its just added weight to the valve
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Re: Lash caps
[Re: dartman366]
#196031
01/18/09 03:05 PM
01/18/09 03:05 PM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
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master
Joined: Oct 2007
Posts: 4,206
New York
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new cam I had them make it with .050 smaller base circle, this made it so I did not have to buy new pushrod's
If the base circle is reduced, the pushrod is now too short. To correct this the valve must be shorter, not longer. If this improved it, the geo was bad before but in the other direction.
Boffin Emeritus
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Re: Lash caps
[Re: polyspheric]
#196032
01/18/09 03:18 PM
01/18/09 03:18 PM
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Joined: Jan 2004
Posts: 13,247 Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Quote:
new cam I had them make it with .050 smaller base circle, this made it so I did not have to buy new pushrod's
If the base circle is reduced, the pushrod is now too short. To correct this the valve must be shorter, not longer. If this improved it, the geo was bad before but in the other direction.
the rocker stand's were a little high before and I did not mill them, by doing it this way I rolled the rocker inward with the smaller base circle/shorter pushrod's(because of the smaller BS) and added the cap's to take up the change and made the valve longer as the result of that change, which in reality helped correct the problem.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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