X-Mozilla-Keys:                                                                                 
Brian D. Cain wrote:

Ok, I have a question for those who know your different version/years of
the 13B.

I purchased an engine reported to be an 87 Turbo II with 89-92 Turbo II
rotors.  Not being familar with some of the Turbo unique features, I got
out  my Haynes to idenify them.

A couple however, evaded my search.  One is that on the input side of
the
water pump there is a 3/8" tube in addition to the normal water flow
Opening.  Is this the water return from the Turbo Housing???

The bottom-left (facing the front cover) inlet?  Yes.  That's a turbo water
line.

The second is I noticed in both rotor housings there is a 1/8" allen set
screw next to the trailing spark plug.  My NA 87 does not have such a
plug.
It looks like it accessess the coolant galley next to the trailing plug.
Is this some racers mod or do the Turbo housings come with these set
screws?? Bruce Turrentine, Paul Yaw??

The only thing that comes to mind here is the different between the older
style vs.
newer style rotor housings' input thread for the knock sensor.  On the newer
housings,
the knock sensor's female thread is 'embossed' in the housing vs. on the
intermediate/ center plate on the older style.

B

 
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