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GR
 Post subject: Cam Follower Destruction
PostPosted: Tue May 05, 2015 2:07 pm 
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Oh dear, worry, worry...

Joined: Fri Jun 19, 2009 5:31 pm
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Location: North Rocks
Hi All,

I don't have to say much. Please grind your Cam Followers.....

He thought he was putting the best of everything in it, this is the result after a few thousand kilometres. :cry:

These cam followers weren't Kent followers, they were a lightened follower that most people use in their motors.

Graham Russell

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MiniBob
PostPosted: Tue May 05, 2015 2:25 pm 
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Nasty, bet that was rattling a bit.

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Mick
PostPosted: Tue May 05, 2015 4:31 pm 
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Location: Under the bonnet son!
That is horrific!

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winabbey
PostPosted: Tue May 05, 2015 4:32 pm 
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Nothing five minutes with some emery paper wouldn't fix. :roll:

Anyway, Graham, it's not all bad news. At least it wasn't one of your cams that was destroyed. :)

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Beanie
PostPosted: Tue May 05, 2015 5:03 pm 
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bugga :cry:

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Morris 1100
PostPosted: Tue May 05, 2015 6:24 pm 
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Joined: Wed Jul 21, 2004 10:32 pm
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Needs more zinc in the oil.
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drmini in aust
PostPosted: Tue May 05, 2015 7:01 pm 
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IMO it's a good idea to check your valve lift figures from time to time with a dial gauge. If the lift starts going south, and you are getting mucho stuff on the sump plug magnet, you may have a problem....
[edit] I wore a Camtech VP3 cam down once, valve lift (1.5 rockers) dropped from .490" to .270"...!

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


Last edited by drmini in aust on Tue May 05, 2015 8:29 pm, edited 1 time in total.

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Scoop
PostPosted: Tue May 05, 2015 8:16 pm 
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Yikes. Mick summed it up pretty well (Horrific).

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VulcanBB18
PostPosted: Tue May 05, 2015 9:08 pm 
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That's pretty much my worst nightmare in pictures... :shock:

cheers,

Jacob

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FNQ
PostPosted: Wed May 06, 2015 8:49 am 
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An additional question sort of in the same ballpark.... I see mentioned that a hardness of 55-57 Rockwell Hardness is recommended for lifters. Does a reground cam need to be heat treated to match this or slightly exceed this figure- but whilst asking this, i doubt hardness played any key factor in this scenario.. ouch
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bent65
PostPosted: Wed May 06, 2015 9:15 am 
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What do you think post mortem is Graham?
No radius on followers and no rotation, or hardness issues as well?
Were the spring pressures OTT?
cheers Ben

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Besser
PostPosted: Wed May 06, 2015 10:48 am 
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As Harvey Keitel said "someone has to pay"
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Mick
PostPosted: Wed May 06, 2015 11:02 am 
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Location: Under the bonnet son!
The surface looks like it shatters like glass...

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drmini in aust
PostPosted: Wed May 06, 2015 1:13 pm 
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Mick wrote:
The surface looks like it shatters like glass...

Surface is white iron, hard as. (lifters are cast iron, chill cast on the end).

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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GR
PostPosted: Wed May 06, 2015 7:19 pm 
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Oh dear, worry, worry...

Joined: Fri Jun 19, 2009 5:31 pm
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Location: North Rocks
Hi Ben
Just grind you followers can save a lot of tears.
Graham Russell

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