#1
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Bolted 4-rivet cam gear
Hi,
Has anyone done this? I have a 4-rivet cam gear and tuning-cam that were seperated when I got them. The gear is drilled with 8mm and the cam with 6.8 and threaded to M8. But: the milling in the camgear to reduce the bolt sticking out is 15mm diameter. Any larger and one get`s very close to the teeth. A M8 bolt has a 13mm head size, and a socket outside gets to large. Any ideas? The picture is not my cam, but shows the difference beteween the old and new cam-gear style. |
#2
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Hi
All aftermarket performance cams are 3 bolt/rivet. The 4 bolt cams actually use a deeper oil pump, that why VW changed around 71 or 72, so you will need another gear and maybe an oil pump. Steve
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STI powered 1303 in the works. |
#3
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The problem is that the cam is 4-rivet. The Germans still make performance 4-rivet cams, but they come assembeled. Mine cam in parts and driller/threaded.
But: Land Rover actually uses a M8 bolt with a flange and 10mm hex instead of 13mm. Just need to grind down the flange a bit since it`s 17/19mm instead of my 15mm diameter. Should work, just need to get the bolts and try. |
#4
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What about using socket headed bolts (allen key)? If the standard M8 head height @8mm is to high then a button headed set screw is much sallower @3.2mm (1/8"). Head diameters are 13mm dia and 14mm respectively.
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#5
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Quote:
Curious about the height of them, but I can mill a bit deeper into the cam gear I think. In retrospect- get them riveted! This is how Schleicher does it as I found out later, a manufacturer of performance 4-bolt cams. |
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