Need quick help with advice on a purchase of a 4000SQ

[Eric Sanborn]

Tyson Varosyan wrote:

I will answer what I know and not speculate on the other items.   See 
below...

>
>#3 Are the water temp gauge and the radiator fan relay ran by the same
>sensor? If not, could one of them be malfunctioning and causing the gauge
>read too high or the fan to not stay on long enough? With my other 4000CSQ
>the problem was opposite, I had trouble getting the temp up there until I
>read about the sensor getting too cold because of oncoming air from the
>front. I built a little cardboard shield around the sensor and the problem
>got resolved.
>
The sensor for the guage is on the water outlet near the front of the 
head.  It is the white one with the non-locking connector.  One pin does 
the guage and one does the light for overtemperature.  The thermo switch 
for the fan is on the bottom, back, driverside of the radiator near the 
wheel well.

>
>#4 Does the 5Cyl 10V motor have hydraulic lifters? If so, the ticking I
>heard may be lifters...
>

Yes it has hydraulic lifters.  It could be the lifters or it could be 
the vacuum pump on the side of the head.  Both of mine made noise when I 
first got mine.  There is a push rod behind the vacuum pump that runs 
off the cam.  If you remove the vacuum pump you can remove this rod and 
just reinstall the pump.  I guess this will reduce your braking boost on 
full throttle, but I have never had a problem (since that is not 
something I do).


-- 
Eric Sanborn
'85 4ktq

http://sofadog.net/4ktq/