↓ Advertise on Defender2 ↓

Home > Td5 > Td5 defender 2003 Cranking but not starting !
Post Reply  Down to end
Page 2 of 2 <12
Print this entire topic · 
Defender975



Member Since: 24 Jul 2024
Location: Saint-pierre
Posts: 7
 
Hello,

The culprit is therefore the compression. here are the results with a fully charged battery, the 5 injectors removed at 19°C.

Cyl.1: 12 bar
Cyl.2: 16 bar
Cyl.3: 16 bar
Cyl 4: 18 bar
Cyl 5: 16 bar

By injecting oil into the cyl 1 and testing the compression it went up to 22 bar.

The specifications are 25-28 bar at 15°C or 21-25 bar at 40°C I'm far from it lol. I ordered an endoscope camera to see the condition of the cylinders
Post #1044534 1st Sep 2024 11:58pm
View user's profile Send private message View poster's gallery Reply with quote
CJs110



Member Since: 06 Sep 2023
Location: Windsor
Posts: 16
Canada 2003 Defender 110 Td5 SW Zambezi Silver
Forgive my ignorance

But would the starter motor not affect the compression test results irrespective of a healthy/fully charged battery?

And I have experienced such a thing. When my land rover didn't like to start it would crank and crank and crank and then eventually fire. I got to a point where I wanted to ensure it wasn't low battery voltage so I actually had a trickle charger hooked up to it every night.

Then I was doing some research as to things that affect it and based on that I replaced the starter with and OEM DENSO.

Trust me the difference was night and day. I wish I had a video. Since diesel utilize compression to run - the initial ignition is crucial and the starter motor plays an outsized role.

I am wondering if that is the case for compression tests too? Even with the battery full charged my original starter motor did not crank the engine as quickly as the replacement. I never did a before/after compression test but that is my thought process - again could be wrong.
Post #1045077 7th Sep 2024 1:43am
View user's profile Send private message View poster's gallery Reply with quote
Defender975



Member Since: 24 Jul 2024
Location: Saint-pierre
Posts: 7
 
My starter motor runs my engine 250 rpm with the injectors in place, which is the required specifications
Post #1045260 8th Sep 2024 10:57pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 2 of 2 <12
All times are GMT

Jump to  
<  Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums