I have the same noise in my 04. Mine comes in around 186-194 but only on really cold days and could be gone after I let it sit for a bit. I have the UG attached 180 tstat and a new radiator. The odd thing is that this only seems to happen below 25 degrees outside. I am running Rotella 15w40 and its kept in a garage which is about 40-60 year round. During the spring/summer/fall months I have not had this tick.

 

This question has not been answered yet (at least I haven't seen it any where)

Can you have a slipped liner with no other symptoms other than the tick?

No coolant loss, excellent oil pressure, doesn't over heat and no leaks.

I have read that people drive with the tick with no issues and others have a mountain of issues. My Indy Rover shop doesn't seem to concerned with the tick and said if it ait broke it doesn't need to be fixed.

Personally it drives me crazy.

 

It seems you can have a loose liner without any other symptoms. My truck has no other issues, HG's were replaced as preventative maintenance around 60k. It has never been overheated according to the previous owner and hasn't since I've owned it. 180* tstat. Doesn't loose coolant or oil and no mixing of the two.

I've been driving with the tick for probably 6k now. I'm only thinking of pinning to stop the noise.

 

I have the tick in my '03 and no other symptoms. Drives me crazy but most likely won't do anything about it.

 

to answer the question YES you can have a slip sleeve without other symptoms. The only reason you would loose coolant is if there is a crack in the water jacket, usually beside the head bolt holes. IMHO it is caused by the LR STY head bolts and asinine torque sequence.

 

Dont forget as well, this tick might not be a slipped sleeve, I think the slipped sleeve might be a rarer occurence than we think.

Take a read at the center of page 31:
How to Power Tune Rover V-8 Engines: For Road and Track - Des Hammill - Google Books

Top right of this page for the authors take on block failure rates:
How to Power Tune Rover V-8 Engines: For Road and Track - Des Hammill - Google Books

 

Hi Do you recall an overheating event with your truck?
What made the liners slip in the first place?

 

My 03 has been ticking for 50k and the only issue seems to be the noise. Runs nice and cool, no loss of coolant, and excellent oil pressure with no contamination.

 

"Can you have a slipped liner with no other symptoms other than the tick?
No coolant loss, excellent oil pressure, doesn't over heat and no leaks."
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"Could be a slipped liner, but I am highly skeptical, in view of other factors you point out. After working on these engines a LOT, and studying a large number of them that were torn down, I am quite certain that way too many guys jump to conclusions, when they have worn valve train, and/or worn rod bearing inserts, they immediately think "slipped liners." It isn't easy or common for liners to suddenly slip, UNLESS ENGINE HAS BEEN OVERHEATED; resulting cracks happen in aluminum walls behind liners, which loosens up liners, resulting in slipped liners. On all engines, a good dozen of them, that had no prior overheating, that I have examined carefully once they were torn down, the liners were solidly, firmly, in place , hadn't moved a fraction. On most all of them that were overheated, the liners moved; they had minute to moderate cracking behind liners on all of them.