Identifying Rocker Arms
chris....@deltasolutions.com
I have a question that hopefully someone with more engine re-building
experience can answer. Is there some way to tell a standard 1.1:1 rocker
from a 1.25:1 or a 1.4:1 by just looking at them? I have a pair of junk 041
heads (serious cracks) that came off of an engine that was in my Thing when I
purchased it. I recently pulled the rocker arms off getting ready to toss
the heads, and was wondering what kind they were. They were on a heavy duty
rocker shaft (bolted ends, not clips). The markings on them are similar to
the following:
46E <SPACE> <SINGLE NUMBER> <SPACE> <VW Logo> <SPACE> <SNGL. NUMBER>
e.g. 46E 1 VW 3
The heads were from CB Performance and I know they sell a HD rocker shaft so
I called them and asked if they could identify the rockers or tell me if
their rockers had any distinguishing markings I could look for. The woman I
talked to basically said no. (so much for product knowledge) In any case, I
was wondering if anyone else out there could help. Any info would be
appreciated.
Thanks,
-Chris
'73 Thing
'97 Jetta Trek
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DesertAuto
In article <6fbc0j$f5k$1...@nnrp1.dejanews.com>, chris....@deltasolutions.com
writes:
>The heads were from CB Performance and I know they sell a HD rocker shaft so
>I called them and asked if they could identify the rockers or tell me if
>their rockers had any distinguishing markings I could look for. The woman I
>talked to basically said no. (so much for product knowledge)
CB Performance sells VW 1.25 rocker arms. They look like stock arms and you
can't tell them apart. You have to put one side by side with a stock on and
see if they are the same. The casting numbers won't tell you anything.
darryl
Desert AutoHaus
16574 D Street
Victorville, CA 92392
760-243-1868
Mr.MoparA.K.A.Dave
chris....@deltasolutions.com wrote:
>
> I have a question that hopefully someone with more engine re-building
> experience can answer. Is there some way to tell a standard 1.1:1 rocker
> from a 1.25:1 or a 1.4:1 by just looking at them? I have a pair of junk 041
> heads (serious cracks) that came off of an engine that was in my Thing when I
> purchased it. I recently pulled the rocker arms off getting ready to toss
> the heads, and was wondering what kind they were. They were on a heavy duty
> rocker shaft (bolted ends, not clips). The markings on them are similar to
> the following:
>
> 46E <SPACE> <SINGLE NUMBER> <SPACE> <VW Logo> <SPACE> <SNGL. NUMBER>
>
> e.g. 46E 1 VW 3
>
> I called them and asked if they could identify the rockers or tell me if
> their rockers had any distinguishing markings I could look for. The woman I
> was wondering if anyone else out there could help. Any info would be
> appreciated.
>
> Thanks,
place them on a shaft & visually inspect the location of the piviot
point & the length of the rocker.The longer the more ratio.The shorter
the less ratio.
Dave.
jd...@lehigh.edu
In article <351AA8...@yahoo.com>, "Mr.MoparA.K.A.Dave" <Mr.M...@yahoo.com>
writes:
>You also forgot the 1.0:1 Rockers.The only way to tel them apart is to
>place them on a shaft & visually inspect the location of the piviot
>point & the length of the rocker.The longer the more ratio.The shorter
>the less ratio.
>Dave.
>
Not true Dave, it's easy to tell the 1.1:1 from the 1.0:1 rockers by casting
features. The 1.1 has two lines cast above the hub and the 1.0 is plain in
this area. Check it out.
John Caffrey
John Connolly
1.25 rockers have the pushrod hole machined CLOSER to the rocker shaft than the 1.1
or 1.0 rocker arms. They are also stamped (all the ones I have seen) with the
VW/Audi symbol on them, which I have NOT seen on the regular rocker arms.
John
BTW, I have a set with less than 500 miles on them, completely shimmed with bolt on
rocker shafts ( and adjusted properly, and broken in) that I will sell for $115 if
someone is interested.
Mr.MoparA.K.A.Dave wrote:
> chris....@deltasolutions.com wrote:
> >
> > I have a question that hopefully someone with more engine re-building
> > experience can answer. Is there some way to tell a standard 1.1:1 rocker
> > from a 1.25:1 or a 1.4:1 by just looking at them? I have a pair of junk 041
> > heads (serious cracks) that came off of an engine that was in my Thing when I
> > purchased it. I recently pulled the rocker arms off getting ready to toss
> > the heads, and was wondering what kind they were. They were on a heavy duty
> > rocker shaft (bolted ends, not clips). The markings on them are similar to
> > the following:
> >
> > 46E <SPACE> <SINGLE NUMBER> <SPACE> <VW Logo> <SPACE> <SNGL. NUMBER>
> >
> > e.g. 46E 1 VW 3
> >
> > The heads were from CB Performance and I know they sell a HD rocker shaft so
> > I called them and asked if they could identify the rockers or tell me if
> > their rockers had any distinguishing markings I could look for. The woman I
> > talked to basically said no. (so much for product knowledge) In any case, I
> > was wondering if anyone else out there could help. Any info would be
> > appreciated.
> >
> > Thanks,
Mr.MoparA.K.A.Dave
jd...@Lehigh.EDU wrote:
>
> In article <351AA8...@yahoo.com>, "Mr.MoparA.K.A.Dave" <Mr.M...@yahoo.com>
> writes:
>
> >place them on a shaft & visually inspect the location of the piviot
> >point & the length of the rocker.The longer the more ratio.The shorter
> >the less ratio.
> >Dave.
> >
> features. The 1.1 has two lines cast above the hub and the 1.0 is plain in
> this area. Check it out.
>
> John Caffrey
I had a set of 1.00:1 on one side of one of my old engine & a set of
1.1:1's on the other side!These rockers look identical to each other.Go
figure?I noticed this when I tore the 1500 apart for a rebuild.
Dave.
jd...@lehigh.edu
In article <351BAD...@yahoo.com>, "Mr.MoparA.K.A.Dave" <Mr.M...@yahoo.com>
writes:
John Caffrey
Mr.MoparA.K.A.Dave
As I was reinstalling them I was checking the Valve lift with a dial
indicator on the Valve spring retainer to get a idea of the total lift
at the valve when I noticed the difference.I did remove the rockers fron
their shafts & installed them the same way that I took them off.If i
diddn't use a dial indicator I'd probablly never of known.
Dave.
jd...@lehigh.edu
In article <351BD4...@yahoo.com>, "Mr.MoparA.K.A.Dave" <Mr.M...@yahoo.com>
writes:
i.e. rocker stand height, how far the shaft is from the valve, valve depths,
pushrod length, adjuster length and geometry, and mfg tolerance on the rocker
dimensions themselves. It is not uncommon for the actual ratio to vary and the
ratio is not constant throughout it's arc of movement. Adjuster geometry
(Differing amounts of radius) makes a huge difference in lift at the valve.
The discussion was about casting ID and has now come full circle, which
castings were you checking? Did you really have two different rocker castings
on that engine?
John Caffrey
Mr.MoparA.K.A.Dave
Think about all the variables that affect your lift at the valve
measurements
>i.e. rocker stand height, how far the shaft is from the valve, valve depths,
>dimensions themselves (.020 max). It is not uncommon for the actual ratio to vary and the
>ratio is not constant throughout it's arc of movement. Adjuster geometry
No kidding i said to get a IDEA.Not a percise figure.
>(Differing amounts of radius) makes a huge difference in lift at the valve.It's because of their building procedure.
>The discussion was about casting ID and has now come full circle, which
>castings were you checking? Did you really have two different rocker castings
>on that engine?
>
> John Caffrey
Yep.