White gunk in copper tube - Page 2 - Kawasaki Vulcan Forum : Vulcan Forums
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post #11 of 36 (permalink) Old 10-22-2017, 09:28 AM Thread Starter
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Yup, read about it. I'll see in what condition gasket is and then probably reuse it.
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post #12 of 36 (permalink) Old 10-22-2017, 12:25 PM
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Instead of 'lapping' a cylinder head or other large surface I will use a large flat file. It is quick and you can keep track of the high spots you are trying to reduce.

Regarding 'painting' of a head gasket, it is true that paint can fill and seal small imperfections I prefer to use a new gasket. The metal gasket material has a certain amount of 'crush' that also helps fill in those small imperfections by design. Once 'crushed' it cannot 'crush' again and therefore must be replaced.

Given the amount of work required to replace said cylinder head gasket I don't think it is worth the time to save a few dollars. Go with a new gasket if you can.
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'97 EN500LTD 'Hidalgo' 208,000+ miles so far
'98 EN500LTD 'Sioux' 19,000 miles so far
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post #13 of 36 (permalink) Old 10-22-2017, 12:56 PM Thread Starter
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New head gasket will go in cart among other needed gaskets then
I'll see what I will do about lapping once i disassemble head
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post #14 of 36 (permalink) Old 11-02-2017, 01:01 PM Thread Starter
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Quick update.
I took off head today, here are some of the pics how pistons and head look.


Piston #1 isn't centered (should it be?) It's positioned a little bit to the front, but I didn't encounter any problem with Cyl #1 at all. (second image, it is visible)
Cyl #1, 2-3 spots of rust near the top of the cylinder wall, will this cause problems?
Gasket's already been reused, right side where it leaked is bent, and RTV was used to fix the problem.
Don't know who done lapping, but this marks on surface looks very professional to me (being sarcastic)
I decided to took head and cylinder to machine lapping, it will cost me about 10 bucks more than doing it myself + they will grind valve seats, clean head, hydrotest for cracks and warpage after lapping etc...





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post #15 of 36 (permalink) Old 11-02-2017, 01:02 PM Thread Starter
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Oil on valves are from my fingers while taking the head off
Oh images are rotated... first pic is cyl #2, second pic is cyl #1

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post #16 of 36 (permalink) Old 11-02-2017, 03:12 PM
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Pictures aren't showing up. If I try to go to them directly I'm seeing 'Your client does not have permission to get URL'.

'99 Vulcan 500, 29k miles

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post #17 of 36 (permalink) Old 11-02-2017, 03:26 PM Thread Starter
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Quote:
Originally Posted by fastpakr View Post
Pictures aren't showing up. If I try to go to them directly I'm seeing 'Your client does not have permission to get URL'.
Thank You for letting me know, It should be fixed, uploaded images to photobucket now. Both cylinders are not centered when I level them, so I'm thinking that should be normal, never smelled burning oil while engine was running.

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post #18 of 36 (permalink) Old 11-02-2017, 04:37 PM
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The tops of the pistons will have quite a bit of clearance when cold so some 'rocking' is normal.
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post #19 of 36 (permalink) Old 11-02-2017, 05:00 PM Thread Starter
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Thanks, that explains it.
Everything so far seems good, mating surfaces are perfectly flat, so no warpage, little bit of surface rust on cylinder walls, nothing that can't be cleaned off, cooling system clean, except head, only in head passages I found grease buildup. Head came off very easy but cylinders won't, they're stuck. I'm scared of hammering it too hard, don't want to break something I'll think of something about cylinders tomorrow.
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post #20 of 36 (permalink) Old 11-02-2017, 05:04 PM
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Quote:
Originally Posted by MARKOEN500 View Post
Thanks, that explains it.
Everything so far seems good, mating surfaces are perfectly flat, so no warpage, little bit of surface rust on cylinder walls, nothing that can't be cleaned off, cooling system clean, except head, only in head passages I found grease buildup. Head came off very easy but cylinders won't, they're stuck. I'm scared of hammering it too hard, don't want to break something I'll think of something about cylinders tomorrow.
Are you referring to the cylinder head? The housing that sounds them?

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