Valve guide question

[Chuck Pierce]

Nathan
At this point I would just have the machinist do them and get the head 
done. If you do not want to do that,
email Scott at SJM and see what he knows about the when the change might 
have happened and whether to turn down the ones you have.
Chuck Pierce
91 200tq 20v Avant

n-engelbert at terrans.net wrote:

>I've got the head out for rebuild from my 200q20v engine donor and my
>machinist is having problems with the valve guides.  He says that from the
>shoulder to where they step down, the length needs to be ~.450" or 11mm,
>and the guides that I bought are ~.330" or 8.5mm.  These measurements are
>from the guides that came out of the head versus the new ones I provided
>him with.
>
>The worldpac sites mention both 8.5 and 11mm guides under the part number
>027 103 419, but they only seem to stock the 8.5mm ones.  Autohausaz and
>Rod at TPC can't get the 11mm guides, something about them being
>discontinued or dealer only now, maybe.  Rod said something about the 11mm
>guide being for a head that's been redone before and that the head may have
>been machined to take the longer stepped down portion guides.
>
>My machinist says he can mod the guides so that they'll fit, and I'm
>thinking of having him do just that.  Did the 200q20v come with these
>different guides, were they installed during a previous head rebuild,
>should I try to find the 11mm guides, or just have the machinist
>change/machine them to fit?
>
>Any other BTDT?
>
>Thanks!
>
>Nathan Engelbert
>83 UrQ DA900453
>89 90q
>91 200q20v donor
>
>
>
>
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