Search found 21 matches

by bbutc
Sat Sep 20, 2025 6:57 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

OK, I've plugged everything in and powered everything up but the software doesn't seem to be able to communicate with the ECU even though the laptop can see the device, but there are no LEDs lit up - should there be? I believe there should be communication with just the ignition on. My laptop only h...
by bbutc
Wed Sep 17, 2025 7:46 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

The car has a standard 1990 Lucas hot-wire fuel injection ECU but with a 'Tornado' chip. The tick-over was 1000rpm when I bought the car and it seemed fine, even though the chip states it should be 800rpm. I've just bought a 'Rover Gauge' and will be plugging it in at the weekend. Never used one bef...
by bbutc
Sat Sep 13, 2025 3:55 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

Unfortunately, it's NOT the idle control valve, or a vacuum leak because I noticed that the problem is still present with the idle control valve disconnected and the hole blocked up. :evil: - Please see the video. The vehicle drives and behaves normally for about 15min, and then all of a sudden the ...
by bbutc
Tue Sep 02, 2025 2:13 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

Vacuum leak has been traced to a faulty idle control valve (the old Land / Range Rover one with the stepper motor) - should be an easy fix. :?: I've already got a replacement off Amazon. I couldn't get the old one apart so I put it in the bench vice and hit it with a lump hammer - turns out that you...
by bbutc
Wed Aug 20, 2025 3:13 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

The timing issue is now fixed.

Turned out that the CAM shaft retaining plate was never fitted, so another black mark against RPi. :?

Not out of the woods yet though as the engine has now developed a bad vacuum leak. :(

Thanks to all commenters.
by bbutc
Sat Jun 07, 2025 11:43 am
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

Update: Both gears are now on order from Turner Engineering. However, Turner Engineering were not very comforting about the outcome as they said that the timing gear would not fail in isolation and something must have caused it but I won't find out what until the front cover is removed. :? I'm curre...
by bbutc
Thu Jun 05, 2025 9:49 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

Thanks to all, this is very useful information as I thought the helical gear was part of the CAM shaft. Now I know it can be replaced separately it should be a much simpler and cheaper job! I based in Derby but can transport the car to anywhere in the country if anyone wants to recommend a garage wh...
by bbutc
Tue Jun 03, 2025 4:19 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

Needs a CAM shaft. :sob [ https://1drv.ms/i/c/2f45721d87dd50c4/EXwiGviR_1ZDj0XjqA2H1qUBeJKNBlQ09Rh0GB5jmdvApQ?e=K2egwn https://1drv.ms/i/c/2f45721d87dd50c4/EejxlNsbQgpPvQnEJ2TPnNoBy2KtunIlzk0BXKAIdRAgHQ?e=bKtwtg Can anyone recommend a garage familiar with this engine and can carry out this work at a...
by bbutc
Sat May 24, 2025 9:32 am
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

Hi - Picture of the engine in the first post above (seems to be working). Thanks.

https://1drv.ms/i/c/2f45721d87dd50c4/EQ ... A?e=pzrpz4

Standard Rover CAM covers have been replaced with some Edelbrock ones, dizzy at the front.
by bbutc
Thu May 22, 2025 10:06 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

Re: 1990s Range Rover 4.6ltr V8 Timing failure

OK - Got an update on this, been talking to an 'expert' on the Range Rover V8s and he says he's never heard of a 4.6ltr timing chain jumping as it's more likely to snap rather than jump, but what he has heard of is the distributor shaft striping its teeth where it meets the cam shaft sprocket, and t...
by bbutc
Wed May 21, 2025 7:19 pm
Forum: Engines Area
Topic: 1990s Range Rover 4.6ltr V8 Timing failure
Replies: 25
Views: 4385

1990s Range Rover 4.6ltr V8 Timing failure

Hi all, hope you are all out and about in your V8s enjoying the great weather, I was. :? At about 70 the engine began to splutter and backfire, so I pulled over and now it won't start again. The AA man said it sounded like engine's timing is totally out, like the timing chain has jumped, but as far ...
by bbutc
Sun May 04, 2025 7:44 pm
Forum: Brakes & Suspension Area
Topic: Brake up-grade options
Replies: 19
Views: 34429

Re: Brake up-grade options

The last garage I took the car to swapped out the EBC pads for some standard FERODO ones as they said the EBC pads would not reach operating temperature, given that the car only weighs 650Kg, and they were correct - now that the replacement pads have bedded in the brakes are working a lot better. - ...
by bbutc
Sun Sep 01, 2024 3:53 pm
Forum: Brakes & Suspension Area
Topic: Brake up-grade options
Replies: 19
Views: 34429

Re: Brake up-grade options

All - Update on this thread. - I have now upgraded the front calipers to the HiSpec 4 pots / 283mm vented/grooved discs / EBC Greenstuff pads. Replaced the rear brakes with what was already fitted [ Ford Granada Mk3 calipers / 247mm solids / EBC Greenstuff pads ] Replaced the brake fluid reservoir (...
by bbutc
Mon Jun 12, 2023 9:15 pm
Forum: Body & Strengthening
Topic: Drivers seat removal
Replies: 7
Views: 34428

Re: Drivers seat removal

I took the car to a local garage and they couldn't figure out how to remove the seat either - they recommended taking it back to the guy who built it. :shock: Anyway, I perceived and after digging around in the the only place I could, in the gap between the base and the upright section, I spotted wh...
by bbutc
Sun Sep 18, 2022 8:09 pm
Forum: Body & Strengthening
Topic: Drivers seat removal
Replies: 7
Views: 34428

Re: Drivers seat removal

Sorry, 2012 DAX Rush V8. It's booked into the garage now anyway - they can sort it out. It's probably just me being stupid - I'll let you know what they find.

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