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choz

Member Since: 03 Dec 2013
Location: Halifax
Posts: 2

Knocking noise on puma 2.4 engine

Hi All
This is my first post.
I have a defender 90 2007 pickup 2.4 puma engine with 85000 mile and full service history. the problem is that it has a distinct knocking noise on the engine. I took it to my local diesel specialists for diagnosis on sat 19/07/2004 they immediate told me it was the engine and nothing to do with the fuel system. I then took it to my local land-rover dealers for a diagnosis. I booked in with the reception who promptly told me the couldn't look at it until Friday 25th. I left it with them. Will keep you all posted
My question is if the problem is the recall on the cooling jets under the pistons that don't work properly on warm up causing excessive engine wear, would there be any warranty or warranty contributions from land rover.

20th Jul 2014 4:44pm

theorangebandit

Member Since: 03 Jun 2013
Location: Stowmarket
Posts: 862

What's this recall? I've not heard of it I hate hearing recalls they make me all edgey

20th Jul 2014 6:20pm

choz

Member Since: 03 Dec 2013
Location: Halifax
Posts: 2

well maybe its not a re call but a service bulletin

Land Rover Service Bulletin SSM38792, Date Uploaded: 21 Jul 2008 Models: LD - Defender Title: 2.4 Puma Engine Knock Noise. Last Modified: 21-JUL-2008 09:44 Category: Engine Symptom: 497000 Engine Noise Content Issue: Heavy audible knocking heard on start up. Cause: On start up oil pressures can cause the piston cooling jets, (PCJ), to latch into a zero flow condition. Due to hysteresis effect in design the jets do not unlatch until the engine is warm and the oil pressures lower again. During this time with no pressurized oil jet flow to the lower pistons / cylinder bores, overheat and scuff conditions / damage can occur. Action: Replace the engine assy but ensure only engines post serial # ELD00080707063602 are used. This condition will not occur on vehicles post assured Vin# 9A767162. Engines post the info above are fitted with modified PCJ internal springs and this issue is now closed

20th Jul 2014 6:33pm

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