Plugs have red oily stain and misfire

[zukitrek]

all that is great.
the head shops are vague sure.... after all?, how can they make comments on any head not inspected and fully tested.
What I asked them was what kind of tests they do in heads or if they did the normalising procedure that you mentioned. All this was without knowing what type of head I had. I was expecting a briefing of what they do to and the risk if it gets damaged.
But that was only one shop.
wear is unlimited.
ice damage same.
as is warping from heat damage.(and cracks seen or unseen)
what about all 3?
it would be goofy to speculate what might be wrong or if even serviceable at all (deep cracks inside. etc)
My head was done at another shop and since it was taken in by a friend I really don't know what they did. Probably they did neither (pressurise, normalise, etc) so that is a huge up for grabs. A) no problems found B) did not do the right procedures to determine if it was good or bad and did the job to get the money? Who knows?.
But you learn from this things.

finding good old heads is not easy at all,
many shops. if you send them a head, even reject the core.... "not serviceable" and you must pay more for that fact. the core rebate is based on that. (exchanges)
keep in mind they have a warranty and want the head perfect so they don't get returns.
pulling that off on a 28 year old head, is a tall order.

some exchange heads here, cost $350 to 600....
Napa here, costs. $600

yes , when the piston moves down, there is vaccum created. 19" at idle. (way more decelerating)
this vacuum sucks hard, at the guides.
the guide that are worn will suck oil. there is no stopping that..... as they say Nature abhors a vacuum..... in this case, it tries to replace vacuum with oil.

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and if R&R any statements would be wrong.
what will be , will be....
damage is , unlimited.

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and point 3.
many would flat refuse the job.
there are parts not sold new.
it not a simple SI head. (all guides sold)
it's the magic obsolete CVCC head.

now one more fact.
when you press out 28 year old guides, and they are stuck, and the head is now damaged beyond repair (pressing failure) so now the core is gone. (and the core rebate.
and finding a good core can be impossible, given the 28 year old status....


I guess this guy has them..

http://www.ramscyl.com/honda.htm
$375 + core. (if core good)
Casting #PEO-1 PEO-2 PEO-3 PEO-4 PEO-5 PEO-7 1987-1991

and here
http://machineworldny.com/asp/CylinderHe...453&type=A

$100 core, if yours is bad, they reject it... (or offer the value in aluminum scrap)

and be aware some shops, will take a bad core. (usually if swimming in them)

One other possible call them ask if can buy SI head and send back CVCC core..>>?

http://www.aluminumheads.com/Honda.html

or here, no core charge....

http://www.americancylinderheads.com/cyl...C210C.html