Author Topic: Cam follower, new & old  (Read 383 times)

Offline coolhandluke

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Cam follower, new & old
« on: October 29, 2020, 04:45:58 PM »
At a 120,000 I thought I should change the cam follower after reading so many horror stories.
Out of interest I measured the thickness of the new one, it measured 0.080".
After changing it over I measured the old one, it measured 0.076".
So less than 0.005" wear in 120,000 miles.
Car has regular oil changes and isn't mapped.
So if there's anyone with similar milage I wouldn't be in any rush to change it.

Offline fakie1977

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Re: Cam follower, new & old
« Reply #1 on: October 29, 2020, 08:43:41 PM »
Do you have any pictures? I’m pretty sure that amount of wear is more than the thickness of the DLC coating which means it would be close to failing. I’m surprised if there was any of the coating left.


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Offline coolhandluke

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Re: Cam follower, new & old
« Reply #2 on: October 29, 2020, 08:59:44 PM »
Do you have any pictures? I’m pretty sure that amount of wear is more than the thickness of the DLC coating which means it would be close to failing. I’m surprised if there was any of the coating left.


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No, no pics at the minute but your right the coating was worn.
The coating must be microns are a few thou thick at most.
Is it the coating that's important?

Offline fakie1977

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Re: Cam follower, new & old
« Reply #3 on: October 29, 2020, 09:13:50 PM »


This is a good visual indicator


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Offline coolhandluke

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Re: Cam follower, new & old
« Reply #4 on: October 29, 2020, 09:18:41 PM »
Nice one, had never seen that before.
I'd say mine was at Stage 1, any wear of the coating was still within the holes around the periphery.
« Last Edit: October 29, 2020, 09:27:23 PM by coolhandluke »

Offline Rossimac

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Re: Cam follower, new & old
« Reply #5 on: October 29, 2020, 10:23:59 PM »
Mine was pretty similar after 110k miles to that off stage 1. Did it again at 145k and it didn't really have much of a mark on it! Was going to do it to the car at 175k there but sold it at the are of this month, so I now have an extra cam follower to sell for bad money!

Offline coolhandluke

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Re: Cam follower, new & old
« Reply #6 on: October 29, 2020, 11:14:50 PM »
Mine was pretty similar after 110k miles to that off stage 1. Did it again at 145k and it didn't really have much of a mark on it! Was going to do it to the car at 175k there but sold it at the are of this month, so I now have an extra cam follower to sell for bad money!

And I could have been that person to give you a bad price for it lol
If i ever get a Mk7 I'll give you first refusal on my MK5.

Offline shail

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Re: Cam follower, new & old
« Reply #7 on: October 29, 2020, 11:22:21 PM »
Wow, that's impressive.  I changed mine last month after 40k miles. Definitely 'stage 2' comparing to the photo above.  Car is stock by the way.

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Offline Lewo

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Re: Cam follower, new & old
« Reply #8 on: October 30, 2020, 12:16:33 AM »
Wow, that's impressive.  I changed mine last month after 40k miles. Definitely 'stage 2' comparing to the photo above.  Car is stock by the way.

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PXL-20201029-231923246" border="0

That seems like a lot of wear for standard and 40k?

Offline fazi123

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Re: Cam follower, new & old
« Reply #9 on: October 30, 2020, 01:01:09 AM »
Mine was pretty similar after 110k miles to that off stage 1. Did it again at 145k and it didn't really have much of a mark on it! Was going to do it to the car at 175k there but sold it at the are of this month, so I now have an extra cam follower to sell for bad money!

I could be interested in that cam followed for bad money :P

PM me with a price and hopefully we get a deal sorted :)

Thanks

Offline Pudding

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Re: Cam follower, new & old
« Reply #10 on: October 30, 2020, 04:10:54 PM »
0.080" is 2mm for those living in the 21st century  :grin:

Impressive wear on your example.  There's no rhyme or reason to follower wear, but excessive revs, poor maintenance and aftermarket fuel pumps are definitely factors in killing them off quicker.



2007 ED30 | Ohlins Coilovers | Revo Map | Plus some other stuff | Is all a GTI needs :-)

Offline TheBALDpuma

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Re: Cam follower, new & old
« Reply #11 on: October 30, 2020, 09:33:14 PM »
I did mine at I think about 110,000 miles and it looked like the new one!