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has anyone made one before or found any info on them, i can't seem to find anything!! i have a rough idea on how to do it just interested on reading up on it.
and yar, i don't wanna be paying £125 for one!!
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Davenger
Club Retro Rides Member
It's only metal
Posts: 7,272
Club RR Member Number: 140
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DIY Vernier Cam Pulley?Davenger
@dminifreak
Club Retro Rides Member 140
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Sept 3, 2009 11:48:06 GMT
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I'd want to be using a tried and tested off the shelf jobbie personally. If it lets go, your valves are screwed at the very least, depending on the car. £125 is a lot less than the cost of re-building your engine and replacing a load of internal components
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Sept 3, 2009 12:10:47 GMT
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Someone on here made one for a Beetle if I recall. Don't know if it ever got used or not though.
He cut the wheel into an outside and an inside and made a snug fitting disc for the middle. Bolted tight to one part, slotted holes in the other so it could move +/- a few degrees and that was it. He cut his disc by hand but I'd put it on a lathe to make sure it was concentric.
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gn3dr
Part of things
Posts: 391
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Sept 3, 2009 12:35:06 GMT
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Here's a few pics I saved from the web a few years ago - these were for a Suzuki Swift Gti. Definitely would need a lathe to do properly.
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Sept 3, 2009 12:58:19 GMT
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Someone on here made one for a Beetle if I recall. Don't know if it ever got used or not though. He cut the wheel into an outside and an inside and made a snug fitting disc for the middle. Bolted tight to one part, slotted holes in the other so it could move +/- a few degrees and that was it. He cut his disc by hand but I'd put it on a lathe to make sure it was concentric. for a newbie? original bugs are pushrod ohv or am i being completely dense
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gasserjay
Part of things
Too bad the people who know it all can't do it all
Posts: 296
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Sept 3, 2009 13:10:51 GMT
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Someone on here made one for a Beetle if I recall. Don't know if it ever got used or not though. He cut the wheel into an outside and an inside and made a snug fitting disc for the middle. Bolted tight to one part, slotted holes in the other so it could move +/- a few degrees and that was it. He cut his disc by hand but I'd put it on a lathe to make sure it was concentric. for a newbie? original bugs are pushrod ohv or am I being completely dense Your being dense they've still got a cam gear.
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1970 LTD country squire 1978 VW Westfalia 1988 VW Westfalia 1973 E100 econoline 1973 E200 econoline 1967 VW Sparkafer 1973 VW GT bug 1965 21 window samba 1961 splitscreen double cab 1975 bay single cab 1956 oval baja 1975 Volvo 242 1993 Volvo 945 d24tic 1985 Transit tipper
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Sept 3, 2009 13:33:48 GMT
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I think Broke4Speed did it on his beige mk1 Golf. Have a look for his build thread.
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1967 Morris Traveller 1971 Series IIA Land Rover 1991 Golf GL 4+e 1992 Corrado G60 1986 E28 BMW 528i
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Sept 3, 2009 13:37:06 GMT
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for a newbie? original bugs are pushrod ohv or am I being completely dense Your being dense they've still got a cam gear. yeah but you'd have to split the case to adjust that? if your going to the extent of splitting it down anyway you might as well take the simple option of knocking it round a tooth lol
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Last Edit: Sept 3, 2009 13:38:00 GMT by retrowagen1234
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spiny
Club Retro Rides Member
Wiki Admin
I am abivalent towards car electrics ...
Posts: 1,331
Club RR Member Number: 167
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DIY Vernier Cam Pulley?spiny
@spiny
Club Retro Rides Member 167
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Sept 3, 2009 15:43:54 GMT
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for a newbie? original bugs are pushrod ohv or am I being completely dense Your being dense they've still got a cam gear. but the cam is in the case, it doesn't have an external pulley - it has a cog which meshes with another cog on the crak. all the external pulley does is drive the alt.
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Last Edit: Sept 3, 2009 15:44:40 GMT by spiny
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Sept 3, 2009 16:20:11 GMT
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exaclty.... unless you have a realy rare ohv cam setup that someone but cant remember who made in the late 70's
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gasserjay
Part of things
Too bad the people who know it all can't do it all
Posts: 296
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Sept 3, 2009 16:41:20 GMT
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Your being dense they've still got a cam gear. but the cam is in the case, it doesn't have an external pulley - it has a cog which meshes with another cog on the crak. all the external pulley does is drive the alt. Just because it's inside the case dosen't make any difference if you want to adjust the cam timing that's what you do. Many race engine builders build engines dyno them and then pull them apart to change cams or alter cam timing. You just want a pretty pulley to look at.
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1970 LTD country squire 1978 VW Westfalia 1988 VW Westfalia 1973 E100 econoline 1973 E200 econoline 1967 VW Sparkafer 1973 VW GT bug 1965 21 window samba 1961 splitscreen double cab 1975 bay single cab 1956 oval baja 1975 Volvo 242 1993 Volvo 945 d24tic 1985 Transit tipper
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Sept 3, 2009 17:10:58 GMT
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If it has a woodruff key that looks to be in good condition on removal, just leave it out.
Make sure the faces between the cam and pulley are clean, the bolt is in good condition and torqued up properly. The woodruff key is there to time the engine up, not to hold its position while running.
1 x free infinitely adjustable pulley wheel with OEM looks. Winner.
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Sept 3, 2009 17:35:38 GMT
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exaclty.... unless you have a realy rare ohv cam setup that someone but cant remember who made in the late 70's I did say 'if I recall', which I clearly haven't. I have a vernier on my Ford OHV to time the cam in properly and you could put one on an older sidevalve if you wanted adjustment on the cam timing. Doesn't matter where the valves are, a Beetle engine surely still has the cam driven off the crank with a gear bolted on the front? So you could turn it into a vernier by splitting it...
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Sept 4, 2009 20:02:42 GMT
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A cheap option is offset dowels - Dave Andrews (K-series legend) used to sell them. Basically you have to identify the amount of adjustment required and then get the appropriate offset dowels. I'm sure it used to be on his web page kengine.dvapower.com/ but I couldn't find it with a quick scan
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