Top end power - help

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currymunster

Active Member
Posts
724
Location
Folkestone, Kent.
Hi.
I've noticed a lack of top end power on my 95 disco 1.
On motorway it just isn't right. Also get a hot exhaust or excess diesel smell.
Had a brief look today and I have a hi note tap from the injector pump.
Also feel knocking from the injector pipes. More on no. 2.
Blocked or duff injector or faulty ip?
How do I diagnose please. Many thanks..
 
Had another look.
Ask intercooler pipes seem fine.
The knocking seems to be worse when warm and is quite bad on the pipe for injector 2 and not so bad on number 4.
1 and 3 seem fine.
???
 
I've done the valve clearances today and still got the noise. I've taken a video and will try and post it so you guys can hear it.
I've cracked open each injector in turn while running but that didn't stop it.
I'm thinking lift pump but I just can't determin where the noise is coming from?
 
Thanks guys
Taking injectors out today or tomorrow to get them cleaned.
We'll see if that works. It's off the road now due to a ruptured steering pipe. I'm waiting for that to be delivered :(
 
Injectors out and being cleaned.
Got four known good ones in to keep me on the road.
Still got the noise though
It sounds like under the injection pump. But my hearing is terrible.
I'm guessing lift pump, injection pump or something under the injection pump.
Maybe a hole in a pipe or something?
 
Drove the car today and it looks like the performance issues have been solved with the temporary injectors.
Still got the tapping noise though so I guess they are unrelated.
Happy new year everyone!
 
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