valve spring cap

comnoz · Jan 20, 2014

Here is a scary image. All stock valve train. Jim

rvich · Jan 20, 2014

What's the story on that? Is it made from soap, plastic or chocolate? You're not going to tell us a vendor sent that to you as a new and authentic AN part are you?

comnoz · Jan 20, 2014

rvich said:
What's the story on that? Is it made from soap, plastic or chocolate? You're not going to tell us a vendor sent that to you as a new and authentic AN part are you?

No- it is an original part. The crack was noticed when friend of mine was replacing a head gasket on his MK3. Jim

rvich · Jan 20, 2014

Yikes! In the photo it does look like it is plastic with a casting line.

comnoz · Jan 20, 2014

Well I guarantee I will be looking close when I am assembling stock heads from now on.

I saw one several years back that was broken completely in two and the top end was destroyed. It was such a mess it was hard to say what broke first but I think I know now. Jim

rvich · Jan 20, 2014

I have a hand held microscope in my tool box that I originally bought for inspecting terminal ends on sailboat rigging. This makes me think that a decent dissecting scope with a good light might be a nice addition to the workshop bench. I think I will be keeping my eyes open for one.

http://www.amazon.com/AmScope-Binocular ... B0058WX16U

comnoz · Jan 20, 2014

rvich said:
I have a hand held microscope in my tool box that I originally bought for inspecting terminal ends on sailboat rigging. This makes me think that a decent dissecting scope with a good light might be a nice addition to the workshop bench. I think I will be keeping my eyes open for one.

http://www.amazon.com/AmScope-Binocular ... B0058WX16U

Actually a magnaflux setup would work well on spring caps. I have magnafluxed quite a few lifters and a lot of cranks and found a few cracks. Maybe I should make a jig to hold valve caps too. Jim

Whitworth Ranch · Jan 20, 2014

Jim, you are one of the few real things on the internet.

Hobot · Jan 20, 2014

https://www.google.com/#q=dissecting+mi ... y&tbm=shop

DIY crack checking
https://www.google.com/#q=diy+magnaflux

Sonic hedge hog crack checking
https://www.google.com/#q=sonic+crack+detection

bill · Jan 21, 2014

I found one like that years ago on an 860 ducati with very low miles.

valve spring cap

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