Any guesses on this ticking noice might be?
#1
Any guesses on this what ticking noise might be?
1996 Discovery SE - 180,400 miles.
It seems to come more from underneath the car.
I was hoping it might be an exhaust leak, but I am afraid it is something more internal. It kind of seems like it is more pronounced when the engine is under more of a load.
It doesn't make this noise on a cold engine, but once it is warmed up it is pretty noisy - like when going down the road.
Thanks - Paul
It seems to come more from underneath the car.
I was hoping it might be an exhaust leak, but I am afraid it is something more internal. It kind of seems like it is more pronounced when the engine is under more of a load.
It doesn't make this noise on a cold engine, but once it is warmed up it is pretty noisy - like when going down the road.
Thanks - Paul
Last edited by notny41; 08-09-2016 at 11:09 PM.
#3
#4
Slipped liner requires a block pressure test. The fix is to pin them using set screws to hold them in place. Normally you'd remove the heads and then feel the difference between the deck and sleeve, should be none but a slipped liner will grab a finger nail. I'd have the oil pan off looking at shells and mic'ing journals....... kinda sounds like rod knock to me. You have a bunch of miles on the motor and I doubt it's been taken care of.
#6
Go to youtube, search for "rod knock" and tell me if it sounds the same as yours. The world wide net is loaded with information about it. The bearings on your motor have 180k on em, they're tin coated copper, once through the tin coating they wear faster. You'll have to take a peek, just one will be enough to make you decide how much you like your Rover. I replaced the entire crank's worth at 120k. It's a common practice for us wrenches to replace to stall a complete rebuild until it's a must do.
#9
ok, not having good luck finding any sound bites of rod knock. I did find some good diagnosis articles though. Going to try shorting the sparkplugs one by one to see if I can identify any change in sound per cylinder. Also going to hook a timing light up and see if the noise is at engine rpm or half engine rpm. I think it is at engine rpm though.
I see a set of connecting rod bearings on ebay for $30 shipped - that's about all I want to stick into this thing at the moment...
I see a set of connecting rod bearings on ebay for $30 shipped - that's about all I want to stick into this thing at the moment...
#10