Author Topic: Cam Tensioner Rod, Springs and Bolt  (Read 62 times)

Offline Wrenchpuller

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Cam Tensioner Rod, Springs and Bolt
« on: Today at 03:38:47 PM »
Hi all,

It appears a previous owner has done a bit of a diy job on the camchain tensioner. The rod has been replaced with a cut bolt and there are no springs. Adjustment was done by a bolt and locknut to push the makeshift rod down manually. And the rod lock bolt doesnt appear to be correct either.

I have one of the new bronze bushed adjusters ready to go in, just wondering what the best course of action would be? I have a spare plug bolt and it looks like you can get the proper rod from DS, I've seen new lock bolts too. But the springs seem to be unobtainiable.

What do we think would be the best way forward? I have took some pictures also.

Thanks, Dylan

Offline Bryanj

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Re: Cam Tensioner Rod, Springs and Bolt
« Reply #1 on: Today at 04:21:34 PM »
Dave Silver does a pattern pushrod but its all steel, no rubber pad.
You can get an tensioner plunger lock bolt kit from Honda Classics if the thread in case is OK , springs have be nla for some time but you  can use a bolt and lock nut down the capped off hole.
I would helicoil the two holes for the horseshoe bolts
« Last Edit: Today at 04:23:13 PM by Bryanj »

Offline Bryanj

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Re: Cam Tensioner Rod, Springs and Bolt
« Reply #2 on: Today at 04:39:30 PM »
This is the manual adjuster on ebay, TTR 400  is a member on here but in South Africa, may be worth a PM to him

Offline Wrenchpuller

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Re: Cam Tensioner Rod, Springs and Bolt
« Reply #3 on: Today at 08:40:31 PM »
Ok ill see if I can get in touch thanks for your advice

Offline McCabe-Thiele (Ted)

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Re: Cam Tensioner Rod, Springs and Bolt
« Reply #4 on: Today at 09:05:42 PM »
It's an expensive upgrade, it looks great quality.
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Athame57

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Re: Cam Tensioner Rod, Springs and Bolt
« Reply #5 on: Today at 10:32:36 PM »
The last thing I heard is that the two springs the push rod passes through can lose their strength over the decades but I can find nowhere that can replace them so far.
I brake for animals!
1978 CB400F2 named Elen.

Online Laverda Dave

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Re: Cam Tensioner Rod, Springs and Bolt
« Reply #6 on: Today at 10:50:20 PM »
The last I heard was TTR400 only sells his horseshoe to DSS simply because the cost of P&P is too expensive to make it viable to post individually.
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1978 Honda CB400/4 'The Flying Banana'
1982 Laverda 120 Jota
2020 Royal Enfield Interceptor 650
1990 Honda VFR400R NC30