John Deere 30 series head gasket

7740 man

Member

• Oct 17, 2020

• #1

Just went to start my 6330 this morning & it ran for a couple of minutes, then I stopped it, went to restart & it wasn’t turning over(stuck at tdc) then it started, clouds of white smoke coming out of the exhaust & smelling of coolant. Levels are all normal still & oil is still black. Head gasket?

 

L

lexion780tt

Member

• Oct 17, 2020

• #2

Or egr cooler would be more likely If happened quickly behind exhaust take back pipe off see how much water comes out

 

Tractortech

Member

Location

Cumbria

• Oct 17, 2020

• #3

Now Then..
Is it a Standard tractor or a Premium??

 

Chae1

Member

Location

Aberdeenshire

• Oct 17, 2020

• #4

30 series head gasket failures a myth! Turbos and egr valves never fail either.

Ours seems to be only one that failed.

 

7740 man

Member

• Oct 17, 2020

• #5

Standard, I think it’s the head gasket for sure. Mechanic said it’s done well to make it to 7500 hrs on original gasket for a 30 series

 

Chae1

Member

Location

Aberdeenshire

• Oct 18, 2020

• #6

7740 man said:

Standard, I think it’s the head gasket for sure. Mechanic said it’s done well to make it to 7500 hrs on original gasket for a 30 series

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Ours blew like a a steam train when it went. It was on a dual carriageway. Was still under warranty. Dealer recovered it that time.

My 6420s did the same every morning and was a nightmare to start on cold morning. It eventually cleared. It had head gasket done too.

 

Gerbert

Member

Location

Dutch biblebelt

• Oct 19, 2020

• #7

Chae1 said:

Ours blew like a a steam train when it went. It was on a dual carriageway. Was still under warranty. Dealer recovered it that time.

My 6420s did the same every morning and was a nightmare to start on cold morning. It eventually cleared. It had head gasket done too.

Click to expand...

Non-common rail? My common rail 6420 is the best cold starting tractor I have had.

 

Chae1

Member

Location

Aberdeenshire

• Oct 19, 2020

• #8

Gerbert said:

Non-common rail? My common rail 6420 is the best cold starting tractor I have had.

Click to expand...

Not sure to be honest. Was a 05.

They did head gasket and made no difference! Turned out it was a seal somewhere in fuel system letting fuel back.

Still wanted paid for head gasket repair funnily enough. Despite them diagnosing that as problem.

 

7740 man

Member

• Oct 20, 2020

• #9

Head gasket confirmed