D Turbo

[3rdmdqm]

I have a '68 M35A2 with a D-turbo. When running the truck noticed oil splatter on the passenger side engine compartment. There is oil leaking out of the back of the turbo (between turbo and firewall). Why is there oil leaking out of the back of the turbo?

 

[msgjd]

bad seal .. it happens ..... does your stack have any evidence of pushing oil yet ?

there is also a pressurized lube pipe for the turbo , is it coming from there?

 

[3rdmdqm]

Doing complete restoration. Just got motor back in and running. Sat 4 years. Started and ran briefly 3 times for about 5 minutes each. Today ran it idling for 30 minutes and noticed oil splatter on frame rail and wet oil spot running out back exhaust side of turbo.

 

[Barrman]

Do you have the flame assist cold starting set up? The fuel line for that is plastic and when cracked can leak between the engine and turbo. Something to check that is an easier and cheaper fix than the turbo.

 

[3rdmdqm]

Do you have the flame assist cold starting set up? The fuel line for that is plastic and when cracked can leak between the engine and turbo. Something to check that is an easier and cheaper fix than the turbo.

I do have a flame heater, but this is clearly oil spitting/leaking from the back side of turbo, no diesel fuel.

 

[3rdmdqm]

I will keep everyone posted and take some pics. It appears that the turbo will be in need of either a rebuild or replacement. Once removed I’ll be able to assess what’s going on. The rebuild kits are not cheap and given the age of the turbo it may be a better decision to replace with new so there are no hidden problems. I’ll document this journey so hopefully it may help others. I may be opting to switch to a C turbo at this point.

 

[BKubu]

I will keep everyone posted and take some pics. It appears that the turbo will be in need of either a rebuild or replacement. Once removed I’ll be able to assess what’s going on. The rebuild kits are not cheap and given the age of the turbo it may be a better decision to replace with new so there are no hidden problems. I’ll document this journey so hopefully it may help others. I may be opting to switch to a C turbo at this point.

FUZZYTOASTER posted about a few turbos that he is offering for sale...both C and D turbos.

 

[biscuitwhistler37]

TX - M35A2 LDT-465 Turbos

I have 3 turbos for the LDT-465 multifuel engines. Each was pulled from a working truck and has been shelf stored. Looks to be 2 D's and 1 C "whistler" turbo. They spin free. Price $400/ea + shipping.

www.steelsoldiers.com

Here's the link for fuzzys post, personal opinion, C turbos are not for the faint of ear, they DO scream.

 

[John S-B]

TX - M35A2 LDT-465 Turbos

I have 3 turbos for the LDT-465 multifuel engines. Each was pulled from a working truck and has been shelf stored. Looks to be 2 D's and 1 C "whistler" turbo. They spin free. Price $400/ea + shipping.

www.steelsoldiers.com

Here's the link for fuzzys post, personal opinion, C turbos are not for the faint of ear, they DO scream.

Go loud or go home...

 

[HDN]

Go loud or go home...

You should be wearing hearing protection anyway, right?

One of these days I'll get one of the old multifuel trucks and experience the noise

 

[Valley Rock]

Make sure your oil drain back to the pan is clear, I've seen people put rags or paper towels in them during assembly and then forget to remove them, and it'll cause exactly the problem you're having

 

[3rdmdqm]

Make sure your oil drain back to the pan is clear, I've seen people put rags or paper towels in them during assembly and then forget to remove them, and it'll cause exactly the problem you're having

Where is the oil drain back to the pan? On the turbo?

 

[Valley Rock]

Where is the oil drain back to the pan? On the turbo?

In between the bottom of the turbo and the oil pan there's about a 3/4 or 1" in diameter drain back tube, if it's plugged for any reason whatsoever oil is going to find a way out, even out of a good seal .

 

[3rdmdqm]

In between the bottom of the turbo and the oil pan there's about a 3/4 or 1" in diameter drain back tube, if it's plugged for any reason whatsoever oil is going to find a way out, even out of a good seal .

Thank you, I will check.

 

[3rdmdqm]

So here is the update and pics. Removed old turbo. Had begun leaking oil pretty bad, but the interesting thing is someone had this off before and used some type of sealant. The oil return was fairly narrowed. Installed new C-turbo and works great. Will be tearing down the old D to see about rebuild as spare.

 

[msgjd]

C turbos are not for the faint of ear, they DO scream.

funny how when we're younger, the whistler's were cool , and they could tell what was coming up the tank trail from a mile away .. Now 40+ years later, I can't stand the things and I need to swap out the "C" turbo in my M109A3 for a "D"

 

[Valley Rock]

Using my old Deuce on forest fires to make a living, you couldn't pay me to run a whistler

 

[SCSG-G4]

Using my old Deuce on forest fires to make a living, you couldn't pay me to run a whistler

I remember when Mitch came over to drop off some stuff. I could hear his C turbo spool up as he turned into the neighborhood, half a mile away.

 

[3rdmdqm]

The new C- turbos are not really loud whistlers like the old ones. Can hardly tell the difference. Maybe it will be louder when it loosens up a bit but as of now it’s not that bad.

 

[Valley Rock]

The new C- turbos are not really loud whistlers like the old ones. Can hardly tell the difference. Maybe it will be louder when it loosens up a bit but as of now it’s not that bad.

Had no idea there were different or "newer" versions of the whistler