P38A zfhp24 swap into 2.5

B

BigAd

Active Member

Posts

72

Location

Leeds

• Oct 20, 2020

• #1

My old 2.5 autobox gave up and I've just swapped it with a hp44 065 box which I was told was a straight swap, when I tried to drive it, it made clunking noises and would only move slightly when manually selecting 1st gear.
On top of this I got a stall speed error fault

The diesel bell housing and torque converter have been swapped onto the 065 box so it is a bolt on job.

Anyone have any insight into this?

 

Mark Piercy

Well fumbled member....

Full Member

Posts

12,661

Location

Sud ouest France !

• Oct 21, 2020

• #2

There is a risk the oil pump could not have been engaged properly?? Never done this one. Unless the replacement was faulty before hand...

 

Last edited: Oct 21, 2020

Grrrrrr

Technician, Bodgit & Scarper Ltd

Full Member

Posts

19,312

Location

Buckinghamshire, UK. ('95 DT)

• Oct 21, 2020

• #3

Mark Piercy said:

There us a risk the oil pump could not have been engaged properly?? Never done this one. Unless the replacement was faulty before hand...

Click to expand...

+1. Really easy to tighten up and snap the lugs. @jamesmartin can explain it best.

 

B

BigAd

Active Member

Posts

72

Location

Leeds

• Oct 22, 2020

• #4

I'm thinking the replacement box I've got is knackered, another 500 quid down the drain. Thought putting the hp24 would strengthen the reliability

 

Mark Piercy

Well fumbled member....

Full Member

Posts

12,661

Location

Sud ouest France !

• Oct 22, 2020

• #5

BigAd said:

I'm thinking the replacement box I've got is knackered, another 500 quid down the drain. Thought putting the hp24 would strengthen the reliability

Click to expand...

Doesn't strengthen reliability, Mines been on its original hp22 sine 1999 and 220.000 miles... It's an upgrade you may never see the real benefit of unless you tow in a professional capacity. The hp24 was used in the almighty torque monster V8 and needed to stop the beast tearing butt holes in the hp22.