The 75 and ZT Owners Club Forums - View Single Post - Question about Chain Drives on the Diesel

JohnnyBG · 19th January 2020, 13:59

I thought to replace the original chain drive on my 1956 motorcycle magneto. The new one wouldn't fit as good as the old one. They run in grease and I'd personally covered over 70k on the bike. Still running the old chain as it had almost imperceptible pin wear.

Note that many people check chain wear incorrectly and look at "bend". To check chain wear, thoroughly degrease/de-oil and check "stretch" on a smooth level surface. There will be a specified limit for the chain from "compressed" to "stretched" depending on the number of pins and size of the chan (1/4" etc.).

JohnnyBG

19th January 2020, 13:59	#12
JohnnyBG Avid contributor ZT-T Join Date: Sep 2019 Location: Teesside Posts: 235 Thanks: 176 Thanked 66 Times in 38 Posts	I thought to replace the original chain drive on my 1956 motorcycle magneto. The new one wouldn't fit as good as the old one. They run in grease and I'd personally covered over 70k on the bike. Still running the old chain as it had almost imperceptible pin wear. Note that many people check chain wear incorrectly and look at "bend". To check chain wear, thoroughly degrease/de-oil and check "stretch" on a smooth level surface. There will be a specified limit for the chain from "compressed" to "stretched" depending on the number of pins and size of the chan (1/4" etc.). JohnnyBG