I've got a coolant leak coming the right side of my turbo, and i think it's one of the nuts, maybe a blown washer. I can't get to the nuts with my socket wrench, neither from under the car nor from above. I think i need to remove the turbo in order to find the leak. What steps should i go through to remove the turbo?
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Re: How do I remove turbo from 940 volvo?
You just need to unclamp the turbo at both ends, its pretty simple once you find the clamps. If you want, you can send me some pictures to email@example.com so I can help specify what to do and I will respond through Fixya in case something has been modified
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Underneath the alternator facing forward is a 13 mm nut which locks the alternator in place, slacken this off and the two nuts/bolts where the alternator pivots.From the left side of the car there is a 10 mm bolt which is the tensioner, slacken this untill the alternator can be moved towards the engine sufficiently to remove the belt .Reverse this procedure to replace the belt. (depending on drives to other items you may have to remove their belts as well)
It looks easy for the 940 but I am not sure about the 940 turbo, as maybe some of the turbo parts are in the way. I'm not sure about that, since there is no documentation on the turbo model vs. the 940 standard model.
If you can follow the following instructions, then I would give it a whirl.
Disconnect the negative battery cable at the battery.
Disconnect the leads from the starter motor.
Remove the starter motor retaining bolts.
Remove the starter motor from the vehicle.
Position the starter motor to the flywheel housing.
Apply locking compound to the bolt threads and install the retaining bolts finger-tight.
Tighten the bolts to approximately 25 ft. lbs. (34 Nm).
Connect the starter motor leads and the negative battery cable.
Fig. 1: Unfasten the nut retaining the starter cables . . .
Fig. 2: . . . and remove the starter cables
Fig. 3: Unfasten the starter retaining bolts . . .
Fig. 4: . . . and remove the starter from the engine
If you have no leaks you can see, you have a internal problem.
1) Head gasket not sealing off properly
2) Cracked head and/or block
Purchase Block leak tester, for your coolant system and follow instruction. If it test reveals combusting gas in coolant. You will need to pull Cly. head for further testing.
Make sure the electric fans are operating as they should.
Check for a blocked radiator core,
Check water pump drive OK,
Get a radiator shop to do 'coolant gas check' for a blown head gasket (looks for combustion gas bubbles in the water system).
take off pipe going to the intercooler from the turbo see if oil is found and clean then other pipe from incooler check it .if oil is found .drain oil in intercooler .you have an oil leak from the turbo this is why you will have light on far left of dash
There is a pipe that connects to the rear of the waterpump right where you say it is leaking. I would guess the seal is leaking. Since you have to remove the pump to replace the seal, you should replace the waterpump.
These engines commonly blow the headgasket when overheated, and commonly overheat and leak coolant when the headgasket is blown. So it may be hard to say what came first, but either way you will need to determine if the headgasket is OK before you make any repairs.
Grey-ish smoke sounds like rich mixture,not oil burning.Grey-to black is usually excess fuel.Whitish smoke is coolant being burned-bad news! If rich mixture,check for air intake leaks (air intake hoses/manifiold gasket),MAF,fuel pressure regulator.