Author Topic: Primary drive chain guides question.  (Read 195 times)

Offline Macabethiele (Ted)

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Primary drive chain guides question.
« on: March 23, 2021, 03:38:44 PM »
My primary chain guides certainly look original one has small lines/marks on it (bottom guide) the other is unmarked. Do I replace them anyway due to age hardening?
Honda CB400F2 under restoration
Jeep Grand Cherokee WJ
Jeep Grand Cherokee WK
Mercedes R129 SL500

Offline Nurse Julie

  • 1973 CB750 UK K2.1977 CB550/4 Mongrel Brat. 1978 CB400/4.
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Re: Primary drive chain guides question.
« Reply #1 on: March 23, 2021, 05:11:37 PM »
No Ted, use them again. Once you have fitted the new Hyvo, the chain literally only just kisses the bottom guide, they are there to protect the cases more than anything.
Im a Nurse, trust me, this won't hurt.....much !!!

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Offline taysidedragon

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Re: Primary drive chain guides question.
« Reply #2 on: March 23, 2021, 05:28:36 PM »
If they don't have much wear you can use again. Min thickness is 5mm iirc.
I'm sure the 2 in your spare engine are good to use.
Gareth

2010 Street TripleR
1977 CB400F

Offline Macabethiele (Ted)

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Re: Primary drive chain guides question.
« Reply #3 on: March 23, 2021, 07:24:35 PM »
Thanks for the replies - replacements are pricey for what they are. The chain was well worn so even in that state it had clearly barely touched the guide. I'm looking to repair the horseshoe guide basically it appears to be carboned up with burnt oil.
Honda CB400F2 under restoration
Jeep Grand Cherokee WJ
Jeep Grand Cherokee WK
Mercedes R129 SL500

 

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