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> Another great offering from alfa1750, top quality as always...
porschetub
post Jul 19 2017, 03:29 PM
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Thought I would pass this on to those contemplating Zenith 40TIN rebuilds,throttle cams are a wear part and are extremely hard to find,in fact I've only seen 1 nos set in many years I have been researching.
AA had a set on ebay for a reasonable price but wanted crazy money to ship them to my US freight forward,I asked them about the shipping and never got an answer,I paid 25USD for these in a $12 combined shipping deal with a heap of parts for my 36 Dellorto's.
It appears this ebay seller has basically all rebuild/wear items for the Zeniths now,I have asked them in the past for parts not on ebay and they have come through.Attached Image.

My old ones had "flat spotted" @ the highest point of the cams,this causes more friction on the guide rollers which wear at a similar rate,the fix for the guide rollers is to turn them around on the axles so you have a new surface to run on.
The other benefits replacing these is more equalized throttle action and any wear on the throttle arm pivots is gone....adds a bit of bling also (IMG:style_emoticons/default/biggrin.gif)
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