i have a 97 discovery 1 with 107k miles,ome springs/shocks/bilstein damper,255/70 michelins.my oil lines to cooler are leaking a little and was wondering do i have to drain oil and remove filter to change or can i do it leaving my new oil in? just ordered hoses and suppose i can wait til next change but curious.appreciate all imput

 

You DON'T have to drain the oil to replace the oil cooler lines. REMOVE the oil filter so you can reach the nut in the pic ( red arrow ).
REMEMBER to support the adaptors at the radiator when you loosen the line nuts. It's a PITA when they spin. ALSO, check that the NEW lines have O RINGS ( there are 5 total see pic). Put a little engine oil on the o rings before you install them. Once the lines and oil filter are reinstalled, check your oil level and you're back to HAPPY TOWN!

 

wow! a whopping thanks! when you mean adapters the coupler that holds them together at top?like the one shown at bottom in pic, do you disconnect bottom first?sorry,just looked,you mean where they attach to rad,what do i hold a wrench tight to it while i disconnect top connection.looked again,got it!huge help,i've owned this baby 20yrs and try to do as much as i can,this really helps!

 

It's a messy job. Just wait until you're changing the oil anyway.

 

I agree if it's not a terrible leak I'd wait until next oil change. I'm in the same boat and I'm waitin. But my leak is GENERALLY very slow.

Not to jack the thread but would anyone know if an oil cooler hose leak could cause the oil pump to lose prime? Trying to settle a bet.

 

do you lose alot of oil? i.ve been letting a local place change oil for years so i might just ask what they would charge,doesn't look like it should cost much.but i won't get hoses for a week so i have time to think about it!

 

if your not getting a light.should be ok,but if your engine is ticking {other than normal!}might be a problem.is oil light is staying on longer than normal ?

 

Lose about a quart a month. Same old ticking. Only really lose it under load, highway speeds it seems.

 

It's going to take them at least an hour of labor, if not more. But it can't hurt to ask. I did it laying flat on my back in my driveway so it was a real pain (and it was my first time doing it).


laying down trying to get leverage on the nuts to loosen and tighten them, while trying to work around all the other stuff down there ain't really fun.


On a lift it would be a lot easier.

 

update,just changed the hoses and thanks overrover for the pics,they helped and yes it is a messy job when crawling under to do it!paid careful attention to not spinning the adapters by using a crescent wrench to hold them tight while unscrewing nut.took me about 1 1/2 hrs so probably saved a decent amount of money! now i'll keep checking for leaks but i think i'm ok.i was concerned that the hose bto right of filter was a little longer and didn't screw in all the way but no leaks and i'll check with where i bought them just to make sure! i'm sure the oil light would come on if not installed right and it did go out right away so...