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How to install a return line for a oil furnance

My oil furnace doesn't have a return line for oil to flow freely.

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Hey Clinton ,if you have a home style becket no return line is required if you have a carlin the return line will be on the right side of burner pump in coming oil will enter left side next to air bleeder on pump, im worried are you modifying something ? i'll be glad to help if I know what your doing or trying to do.

Posted on Dec 10, 2014


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Posted on Jan 02, 2017


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How do I flush the heating coil from my furnace model number pvt140 vesta is the name of my furnace and the company is axeman- Anderson

sorry to hear mike but have seen it done only twice in 65 years so will not suggest how to go about that . if were close enough would come and do it free .

Feb 19, 2015 | Heating & Cooling

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How to replace oil; cooler on this year

  • Service and Repair
Oil Cooler Replacement

Removal Procedure

  1. Raise and support the vehicle. Refer to Vehicle Lifting.
  2. Drain the engine oil and remove the oil filter housing.

  1. Loosen the oil cooler outlet (1) and the inlet (2) lines from the engine block.
  2. Lower the vehicle.
  3. Remove the intake plenum.
  4. Remove the intake manifold.

  1. Disconnect the following electrical connectors from the water crossover:
    • The engine coolant temperature sender (2)
    • The engine coolant temperature sensor (4)

  1. Remove the water crossover bolts (1).
  2. Remove the water crossover upper and lower seals (2).

  1. Loosen the upper heat shield bolts on the left side of the exhaust manifold.

  1. Remove the oil cooler outlet line from the engine oil cooler.
  2. Remove the oil cooler inlet line from the engine oil cooler.

  1. Note the positioning of the 4 seals.

  1. Position the oil feed and return,lines out of the way and secure with mechanic wire.
  2. Remove the engine oil cooler, inlet and outlet nuts (1).
  3. Remove the engine oil cooler cover bolts (2).

  1. Remove the engine oil cooler cover.
  2. Remove the engine oil cooler.
  3. Clean all sealing surfaces.
Installation Procedure

  1. Install the engine oil cooler.
  2. Apply a 2 mm (0.08 inch) bead of RTV silicone sealant, GM P/N 12346240, in the groove around the engine oil cooler cover.
  3. Install the engine oil cooler cover.
Notice: Refer to Fastener Notice in Service Precautions.

  1. Install the engine oil cooler cover bolts (2). Tighten the engine oil cooler cover bolts to 30 Nm (22 ft. lbs.).
  2. Install the engine oil cooler inlet and outlet nuts (1). Tighten the engine oil cooler inlet and outlet nuts to 20 Nm (15 ft. lbs.).
  3. Reposition the oil feed and return lines.

  1. Install the oil cooler outlet and install the oil cooler inlet lines to the engine oil cooler. Use 4 new seals.
Tighten the oil feed and return lines to 30 Nm (22 ft. lbs.).

  1. Install the water crossover:
    • Position the crossover.
    • Install the upper and lower seals (2).
    • Install the water crossover bolts (1). Tighten
Tighten the water crossover bolts to 30 Nm (22 ft. lbs.).
  1. Connect the electrical connectors at the following locations:
    • The engine coolant temperature sensor (4)
    • The engine coolant temperature sender (2)
  1. Install the intake manifold.
  2. Install the intake plenum.
  3. Raise the vehicle.

  1. Install the oil cooler outlet (1) line to the engine block. Tighten the oil cooler outlet (1) line to 30 Nm (22 ft. lbs.).
  2. Install the oil cooler inlet (2) line to the engine block. Tighten the oil cooler inlet (2) line to 30 Nm (22 ft. lbs.).
  3. Install the oil filter housing to the engine block. Tighten the oil filter housing to 45 Nm (33 ft. lbs.).
  4. Lower the vehicle.

Dec 22, 2014 | 2001 Cadillac Catera

2 Answers

Identification of transmission oil cooler lines. Inlet v Return

may need to go to a transmission shop and let them tell you which is which..only other way is to open a line and see which way the fluid runs..

Feb 08, 2014 | 1998 Chevrolet Lumina

1 Answer

Connecting an auxiluary transmisson cooler in series on a 1999 Cheve S/10 pickup

You may have to break a line loose and run the engine a moment to see which way the flow is. Then you can identify the return line.

Nov 24, 2012 | Cars & Trucks

1 Answer

I am installing a trans cooler on a 700R trans. Which line is the return line?

most trans coolers don`t have a thermostat in them to allow quicker warm up of the trans fluid so it doesn`t matter which line is connected to the cooler as the flow will always be the same through the cooler.however the line that is at the bottom of the radiator is usually the return line and the top line is the pressure line and the fluid cools as it flows through the rad tank to the lower line.hth

Jul 30, 2011 | Chevrolet 1500 Cars & Trucks

2 Answers

Which line going into radiator from transmission is the return line i am adding an extra cooler

This should answer your question, just follow the picture.....hope this helped you out ???michael_cass_226.jpg

Jul 02, 2011 | 2004 Cadillac Escalade

1 Answer

Where is the return transmission line located on a 2005 3.7l jeep grand cherokee. By the radiator. But is it on the driver side orcthe passenger side? Is it the top or bottom line?

Generally speaking ... oil goes in hot and comes out colt ... heat rises ... while I an not familiar with your particular car, my guess would be that the hot oil goes in the top and is cooled as it flows down through the cooler and returns to the transmission via the bottom line.

Give it a try ...

Jun 06, 2011 | 2005 Jeep Grand Cherokee

1 Answer

Change oil

Set parking brake and use jack stands if you raise the vehicle.
1. Remove engine front undercover.
2. Warm up engine. This is need for the oil to flow freely when draining.
3. With engine stopped loosen oil filler cap and then remove drain plug.
4. Drain oil into a drain pan.
5. Install drain plug with new washer. Tighten to 25 ft-lb.
6. Remove oil filter using a filter wrench.
7. Make sure the surface is free of foreign materials.
8. Apply engine oil to the seal and install your new Nissan filter. Tighten filter 2/3 turn after contact with surface or 13 ft-lb.
9. Refill engine with 6 quarts of oil.
10. Start engine and check for leaks.
11. Stop engine and check oil level and add to the full line.
12. Reinstall engine front undercover.

Dec 20, 2009 | 2004 Nissan Armada

1 Answer

Oil leak from engine filter

The problem here is the switch inside the oil filter housing, or one of the lines attached to the bottom inboard side of the housing is clogged (oil return line). I just had this repaired. The oil could not return to the motor freely, so pressure was building up in the filter canister and leaking from the cover. The switch is called the oil pressure regulator switch, I believe. The filter depresses a little button at the bottom of the filter chamber. My oil filter was damaged apparently by the use of non-synthetic oil by the previous owner. Please have this addressed as this can lead to engine damage due to oil starvation.

Apr 22, 2009 | 2001 BMW 5 Series

1 Answer

Not getting gas to carberater 1972 bug

Start with the simplest things first... remove the line from the input side of the pump... does fuel flow out nicely? If not, it's a clogged line and probably a lot of gunk in the tank... take off the filler cap and apply some low pressure air to the engine end of the line... if this unclogs it, you will hear a bubbling sound at the filler tube. if fuel flows freely, reconnect and take off the output line at the carb and, (after disconnecting the coil high tension lead and grounding it!) engage the starter, fuel should come out in a solid stream (not just a dribble)... if not replace the pump. If it does turn out to be the pump, check your oil for a gasoline smell as a faulty pump diaphragm can let oil into the crankcase. If so, change oil as well... Hope this helps...;-)

Apr 10, 2009 | 1998 Volkswagen Beetle

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