Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Green Jeep on March 18, 2011, 03:24:42 PM

Title: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Green Jeep on March 18, 2011, 03:24:42 PM

Do these engines suffer like the earlier 2.5 TD engines... what gearbox do they use....?

Thank inadvance Maf

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Mike Pavelin on March 18, 2011, 07:11:56 PM

Run away. It's an XJ diesel with an extra cylinder to go wrong. The gearbox is a 44RE

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Green Jeep on March 19, 2011, 07:26:40 AM

Quote from: Mike Pavelin on March 18, 2011, 07:11:56 PM

Run away. It's an XJ diesel with an extra cylinder to go wrong. The gearbox is a 44RE

Yeah that's what I thought about the 3.1 motor, but I'm sure people on here have said they are better?

2.7 Merc CRD unit ok though?

Trying to source a GC diesel for a friend, can't stand Diesel myself....

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Bishops Finger on March 19, 2011, 11:19:41 AM

There seems to be a few issues with the 2.7's maybe 2.8 in the KJ?

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Mike Pavelin on March 19, 2011, 03:10:39 PM

They all have issues. Diesel engines in Jeeps just ain't natural.

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Bubba on March 19, 2011, 03:33:21 PM

this guy may beg to differ
 AMC Jeep Cherokee Chief 4x4 Cummins Diesel (http://www.youtube.com/watch?v=i8q4KPP3N2U#)

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: ferretjuggler on March 19, 2011, 08:46:52 PM

What sort of power output/fuel consumption does the VM 3.1 offer (before it self destructs)?

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Green Jeep on March 19, 2011, 09:30:02 PM

Quote from: Mike Pavelin on March 19, 2011, 03:10:39 PM

They all have issues. Diesel engines in Jeeps just ain't natural.

Yeah its all wrong, 4 litre petrol with a few mods defo the way forward, happy days

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: dieselj20 on March 19, 2011, 10:10:04 PM

layland roadrunner Cummings b series nice but to heavy

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Bishops Finger on March 20, 2011, 01:14:29 AM

Can you actually get a 3-4 year old Jeep petrol these days???

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: carljh on March 20, 2011, 02:25:21 AM

i drive 2000 miles a week for work and nearly all the jeeps i see have CRD on the back.
tho i did see a nice 5.7 hemi in morrisons last week
 

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: Mike Pavelin on March 20, 2011, 08:59:02 AM

When it hasn't broken down it produces 138bhp and 283 imperial torques.

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: ferretjuggler on March 20, 2011, 09:13:33 AM

I googled  a road test or two

283 ft/lb torque sounds impressive, 138bhp less so.

Average fuel cons only 24, not worth the hassle over a petrol unless ya doing loads short journeys I think.

And slated for being noisy when pushed hard, like an old tractor :icon_eek:

A XJ 4.0 with sequential LPG is still gonna make more than 138bhp, the engines have proved tough, durable, and can take LPG long term.

Cheap to replace too, 'cos the 4.0 seems to outlive the Jeep

Title: Re: Grand Cherokee 3.1 TD engines and boxes ok?
Post by: scrw on March 20, 2011, 10:11:56 AM

Only good thing about 3.1TDs is they make good donors for 4litres what you want to regear tha axles LOL