Volvo Penta MD7A 110S Owners Manual

CHECKS AND SERVICE
CHECK THE COOLING SYSTEM
The cooling  system is functioning  normally when the  temperature warning lamp  is out
and the  buzzer is silent.  Too high  water temperature (the  warning lamp is  on and  the
buzzer  is  sounding)   can  be  due  to  the   following   reasons:  Blocked  water   intake,
defective impeller or defective sea  water pump carrier, faulty thermostat or temperature
sender. NOTE!   When  working  on  the  cooling  system,  be  careful  and  avoid  water
coming into the boat.
The impeller  can be damaged  by lack  of
water   among   other  things.   Close   the
bottom  intake valve.   Remove  the  sea
CHECKING AND
CANGING THE
IMPELLER
water pump  cover. If it proves  necessary
to replace the  impeller, pull out  the impel-
ler  and the  shaft as   far as  necessary to
reach   the   crew   on  the   impeller   hub.
NOTE! On  earlier executions: Do not  pull
out  the shaft  further than  that, since  the
sealing rings  can be  damaged when  the
shaft is pushed back. Remove the  locking
screw,  (on  earlier  executions  hold  back
the  shaft)  pull off  the  impeller.  Install  a
new impeller, tighten  the screw and  push
the shaft back into position.
The carrier is defective  if the impeller and
shaft can be turned.  A new carrier can be
installed after having  removed the pump.
Install the  water pump cover, using a new
gasket. Open the bottom intake valve.
COOLING SYSTEM
S-DRIVE MODEL 100S
The cooling water intake for the cooling of
the  engine  is  located  in  the  lower  gear
housing  of  the S-Drive.  Check, while the
boat is  on land, that  the gillformed water-
intake  and the  hole in  the lower edge  of
the  S-Drive are  free from marine growth.
When inhibiting or  when there is a risk  of
temperatures  below   zero,  drain  off  the
cooling water  from the  S-Drive and pump
by removing  the cooling water  hose from
the cock on the S-Drive.
NOTE! If  draining  with the  boat in  the
water, close  the cock  prior  to start  of
draining. Incorrect  draining  might  easily
end up with a sunken boat.  Do not forget
to  open   the  cock  prior   to  starting   the
engine.
19
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(3 votes, average: 3.33 out of 4)
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Volvo Penta MD7A 110S Owners Manual SKU UPC Model
John wood on Feb 17, 2016. Yqnh2f

I'll let you know when I had a look


bas on Apr 02, 2015.

I need some info for my engine


fernando viani on Mar 25, 2014. volvo md 7a

please. i need a book of engine md 7 a


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