 Any Advantage to Rocker Spacers? |
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| vesnyder |
 Oct 4 2007, 08:15 PM
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#1
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Senior Member  Group: Members Posts: 680 Joined: 14-April 05 From: Cleveland, OH Member No.: 3,933  |
Any advantage to the aluminum rocker spacers in lieu of the stock springs? For the price (~$20) seems like a no brainer if there is any advantage at all?
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| jk76.914 |
Oct 5 2007, 09:52 PM
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#2
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Senior Member Group: Members Posts: 809 Joined: 12-April 05 From: Massachusetts Member No.: 3,925 Region Association: North East States |
I think the VW hydros started the change to the solid spacers. Makes sense I guess, since with a solid lifter, the valve train is unloaded two-thirds of the time, and the spring has that time to reposition the rocker against the pedestal. With hydros, there is some loading all the time, and possibly the rocker can "walk" off the valve tip.
The VW-hydro version has a thrust washer against the rocker, followed by a spring washer, followed by the spacer, another spring washer, another thrust washer and then the other rocker. This is the type I used in my hydro conversion. I polished one surface of the thrust washers and also the inboard edges of the rockers for the same reason Jake describes- to max out the oil pressure in the rocker and hopefully enhance delivery to the valve end of the rocker. I believe that there are aftermarket versions that are simply a close fitting tube- no spring washers or thrust washers. Seems much simpler and I can't think of any downside vs. the VW setup. Just some personal opinions..... Jim |
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Posts in this topic
vesnyder Any Advantage to Rocker Spacers? Oct 4 2007, 08:15 PM
Blood red 914-6gt I don't get it. What is a rocker spacer?
Oh, ... Oct 4 2007, 08:19 PM jd74914 Yep. It will make sure the rockers don't move. Oct 4 2007, 08:29 PM SirAndy supposedly helps keeping the geometry in line at h... Oct 5 2007, 12:20 AM Jake Raby I use them on every engine for several reasons.
1... Oct 5 2007, 09:45 AM
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