Disco II knock.. changed everything, now what?
So I have a disco ii I got off a family friend who put a "new" engine in. There is a knock, cylinder 7 is misfiring, blow by when warmed up and so we've:
Mobile 1 10-40 Tested knock sensors, injectors (swapped with 7) New plugs, wires, coil, gutted cats, Compression tested all cylinders are 185ish, New intake gaskets, New Lifters, Rocker arms/push rods look good. Am I missing any thing?? After all this the engine sounds better but the knock is still there. Thanks in advance! |
Hope not, but warmed knock could be slipped liner
|
It is something we've considered but not touched yet.
|
Did you change t-stat to 180?
|
Lets hope you still have the documents for the new engine replacement cause it should have a warranty on it. Though I wonder, how sure are you a NEW engine was put in? is it possible a used engine was put in? That certainly would explain the knock better.
|
I would start with a leak down test. By the way, you can not replace the lifters without replacing the cam. Your new lifters hardened surface will cut the cam or the warn lobes will tear up the lifter hardened surface.
|
Originally Posted by TRIARII
(Post 429136)
Lets hope you still have the documents for the new engine replacement cause it should have a warranty on it. Though I wonder, how sure are you a NEW engine was put in? is it possible a used engine was put in? That certainly would explain the knock better.
|
Originally Posted by Disco Mike
(Post 429150)
I would start with a leak down test. By the way, you can not replace the lifters without replacing the cam. Your new lifters hardened surface will cut the cam or the warn lobes will tear up the lifter hardened surface.
|
You dont need to do anything other than buy a different thermostat, the colder one.
Call Trevor at Land Rover Parts and Accessories from RovahFarm and tell him you need the "colder" t-stat. Install, problem solved. Cost is under $50 and takes 15min. You have a cylinder liner that is moving once warmed up, no test can find it, it is what it is, the only true fix is a new engine. The different t-stat will keep the engine cooler so the liner wont move. |
Originally Posted by Spike555
(Post 429202)
You dont need to do anything other than buy a different thermostat, the colder one.
Call Trevor at Land Rover Parts and Accessories from RovahFarm and tell him you need the "colder" t-stat. Install, problem solved. Cost is under $50 and takes 15min. You have a cylinder liner that is moving once warmed up, no test can find it, it is what it is, the only true fix is a new engine. The different t-stat will keep the engine cooler so the liner wont move. |
All times are GMT -5. The time now is 12:35 PM. |
© 2024 MH Sub I, LLC dba Internet Brands