110 tried almost everything and it is still overheating.need some advice

draaronr

draaronr

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Apr 20, 2004
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3.5 liter 110 started to run hot. I replaced the thermostat (there wasnt one in there so I believe this was a problem in the past.) Evidence that the head gasket was bad (imagine that in a rover) so I replaced that and had the heads cleaned and pressure tested. replaced with composite gaskets. The sleeves in the cylinders were maybe a 16th on an inch dropped which I didn't think was enough to cause a problem. the water pump had been rebuilt poorly so I put a new one on. The temp switch is new. The radiator was rotting so I put on a new core. Now it idles fine for like 15 minutes then the guage creeps up. As the guage creeps up it begins to blow antifreeze out the overflow tank. Is the only thing left the block? Advice would be appreciated.
 
Steve Rupp

Steve Rupp

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Apr 21, 2004
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I would agree that the block is the only thing left. I'm sure you pressure tested the system already. Did you find any leaks? I would run the engine with the expansion tank cap off and see if it is bubbling. This is usually the indicator of a leak. Other than that I have no other advice seeing you replaced everything else.
 
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Iron Boots

Guest
Aaron, coming out of the overflow hose or the cap? How is the cap?
 
K

Kyle

Guest
This might be a stupid question but is the fan Clutch doing its thing ? Overheating at idle sounds like fan to me...
 
K

Kyle

Guest
Having no fan = no cooling effect at all which = overheat in fairly short order.. FRom dead cold it would take it a few but not once its already warm
 
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marc olivares

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Apr 20, 2004
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i agree with Kyle, make sure the fan is good before you start throwing any more time or money at it...
 
draaronr

draaronr

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Come on guys I'm not exactly a rookie here. That means that the clutch fan is new, the old one wouldn't come off the water pump so it had to be cut off to get the pump off. No white smoke at all, just starts to run hot. Keep thinking though I appreciate the help. Oh and the pressure was checked by a garage and they said it was fine, I am going to have another location check it this week.
 
K

Kyle

Guest
Hmmm , no chance you have the wrong pump is there ? That thing is V belt , I dont know if the other will bolt on or not but if it did it wouldnt circulate
 
ptschram

ptschram

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Sep 27, 2004
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In the shop doing the Lord's work one broken Rover
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Kyle said:
Hmmm , no chance you have the wrong pump is there ? That thing is V belt , I dont know if the other will bolt on or not but if it did it wouldnt circulate
Click to expand...

The front covers are different, you cannot bolt a serpentine belted water pump to a non-serpentine belted engine without major work-converting the ancillaries.

I've seen this exact thing happen. It's almost certainly leakage from the number seven cylinder into the water jacket. Pull the plugs, oneis likely cleaner than the others. PRessurize this cylinder withshop air and look for boiling in the expansion tank.

Whether it's a bad gasket or slipped sleeve, this test will reveal the source (although, if a sleeve slipped 1/16" as described in the first post, I think we have our smoking gun)
 
R

Rocky

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Apr 23, 2004
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Red Sox Nation
Expansion tank spurting rather than bubbling suggests to me that combustion gasses are getting into the coolant. I think your block may have gone porous and is toast but hate to suggest such an expensive repair. but you seem to have covered everything else.
When you pulled the heads did you take a close look at the sylinders. Usually the leaking one is a little cleaner than the rest
One more ? Does it run smoothly otherwise? Hows the compression (ok thats two)
:confused:
 
I

Iron Boots

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draaronr said:
runs awesome actually, just hot, and the compression is within the normal limits.
Click to expand...

If you need another 3.5 Aaron, C'mon up :D I just picked up a spare LOL!
 
draaronr

draaronr

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Thanks RJ, I am trying to decide which route to go now as the block is most likely the issue. Obviously I would like to go the 4.6 route, but not sure what all that would entail. I would like to keep the carburation to skip the computers, I am just unsure of what I could reuse or if I could find one out of a totalled disco and remove the fuel injection and replace with my carb kit? Need some help, and advice or where to find it. I read RPIs page and got some basic info. I would just like to speak to someone who has done it.
 
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EricSiepmann

Guest
Aaron,

There is a wealth of info on the conversion on D-90.com. RPI is very expensive. Check the Garage sale on Pirate 4x4.com. A 4.6 long block for sale. Can't remember the details, aside from uprated cam and porting/polishing. It's here in Chi-town. The seller is in the club and has moved on to land cruisers - so he is selling off his rover parts. Might be able to swing a low ball deal if you wave some cash in his face.

Caveat - haven't seen the block nor know any details. Plus I really only have met this guy once or twice.

EwS
 
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EricSiepmann

Guest
I'll look for it tonight. I spoke with Ali at the last meeting and he said he still had it.

EwS
 
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