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 3.5L DOHC - Blue Smoke on acceleration :(
#1004891
08/01/10 02:00 AM
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Joined: Jul 2010
Posts: 71
OP
Getting the Wheeling Fever
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I have a 1995 Montero SR 3.5L DOHC 139k miles. It has blue smoke when accelerating from idle. It's a puff of smoke then goes away. On my 1992 Montero 3.0L the culprit was the valve stem seals. I replaced them and no more smoke. I also replaced them on a 1990 Montero and it fixed the blue smoke problem. I'm not excited about replacing 24 valve stems. That's going to be a tedious project. <img src="/forums/images/graemlins/zombie.gif" alt="" /> Are the valve stem seals the likely issue? Or is there something else I should check for? <img src="/forums/images/graemlins/patriot.gif" alt="" />
1995 Montero SR - 2" Body Lift, 35" BFG KM2, 2.5" Suspension Lift, Manual Hubs Searching
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: montypower]
#1004892
08/01/10 03:29 AM
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Joined: Apr 2006
Posts: 1,193
Body Damage is Cool
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yep valve stem seals mitsubishi valve stem seals are junk
it dosent have to be surrounded by water to be an island
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: mxmikie]
#1004893
08/01/10 05:07 AM
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Joined: May 2007
Posts: 4,628
Roll Me Over
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Fasteddy's advice is occasionally sound...
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: hazy_daze]
#1004894
08/01/10 05:37 PM
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Joined: Jul 2010
Posts: 71
OP
Getting the Wheeling Fever
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Does anyone have experience replacing the valve stem seals on the 3.5L?
1995 Montero SR - 2" Body Lift, 35" BFG KM2, 2.5" Suspension Lift, Manual Hubs Searching
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: montypower]
#1004895
08/01/10 07:41 PM
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Joined: Feb 2005
Posts: 1,511
Body Damage is Cool
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IIRC, somebody on this forum was able to do the 3.5 DOHC valve stem seals without removing the heads, but when I did mine several years ago I tried 3 different valve spring compressors with no luck (really limited space around the valve springs on these heads) before I finally ended up pulling the heads off to replace them. I did everything on my motor at the same time - timing belt, valve stem seals, lower intake manifold, plugs, wires, belts, hoses, radiator rodded, even had a valve job done since the heads were off and getting disassembled anyway.
95 Montero SR
3.8 MIVEC, Advance headers, 2 1/2" exhaust, Magnaflow muffler, OME shocks & rear springs, 2" body lift, 3" tank lift, 4.90s, TRE front locker, factory rear locker, Roger Brown Rock Sliderz, 315/75r16 (35") tires, Sport big brakes
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: ryany]
#1004896
08/01/10 08:28 PM
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Joined: Apr 2006
Posts: 1,193
Body Damage is Cool
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i did mine i bought the tool to do them i had to make a fitting for the springs since they are so small now i rent the tool to do it you have to remove the cams
Last edited by mxmikie; 08/01/10 08:31 PM.
it dosent have to be surrounded by water to be an island
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: ryany]
#1004897
08/01/10 10:39 PM
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Joined: Jul 2010
Posts: 71
OP
Getting the Wheeling Fever
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IIRC, somebody on this forum was able to do the 3.5 DOHC valve stem seals without removing the heads, but when I did mine several years ago I tried 3 different valve spring compressors with no luck (really limited space around the valve springs on these heads) before I finally ended up pulling the heads off to replace them. I did everything on my motor at the same time - timing belt, valve stem seals, lower intake manifold, plugs, wires, belts, hoses, radiator rodded, even had a valve job done since the heads were off and getting disassembled anyway. That's a major job. Do you remember the head rebuild cost? Did you do it yourself?
1995 Montero SR - 2" Body Lift, 35" BFG KM2, 2.5" Suspension Lift, Manual Hubs Searching
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: mxmikie]
#1004898
08/01/10 10:41 PM
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Joined: Jul 2010
Posts: 71
OP
Getting the Wheeling Fever
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i did mine i bought the tool to do them i had to make a fitting for the springs since they are so small now i rent the tool to do it you have to remove the cams Do you have any information on the tool you rented? Did you use the air compressor trick to hold the valves up? Would you go this route vs pulling the heads?
1995 Montero SR - 2" Body Lift, 35" BFG KM2, 2.5" Suspension Lift, Manual Hubs Searching
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: montypower]
#1004899
08/02/10 06:27 AM
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Joined: Apr 2006
Posts: 1,193
Body Damage is Cool
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i did mine i bought the tool to do them i had to make a fitting for the springs since they are so small now i rent the tool to do it you have to remove the cams Do you have any information on the tool you rented? Did you use the air compressor trick to hold the valves up? Would you go this route vs pulling the heads? i did not rent the tool i bought the tool then i had to make an adapter for the mitsubishi springs cause they are so small and now i rent the tool out it comes with the fittings for the compressed air hose it has all you need except for the cuss words to remove and replace the valve springs without removing the heads
Last edited by mxmikie; 08/02/10 06:30 AM.
it dosent have to be surrounded by water to be an island
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Re: 3.5L DOHC - Blue Smoke on acceleration :(
[Re: mxmikie]
#1004900
08/02/10 06:40 AM
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Joined: Jan 2002
Posts: 6,134
Trail Leader
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i did mine i bought the tool to do them i had to make a fitting for the springs since they are so small now i rent the tool to do it you have to remove the cams Do you have any information on the tool you rented? Did you use the air compressor trick to hold the valves up? Would you go this route vs pulling the heads? i did not rent the tool i bought the tool then i had to make an adapter for the mitsubishi springs cause they are so small and now i rent the tool out it comes with the fittings for the compressed air hose it has all you need except for the cuss words to remove and replace the valve springs without removing the heads MX, you're cool <img src="/forums/images/graemlins/kewl.gif" alt="" />
1999 Montero SAS'd on Kings and stuff
1998 Montero trying to get a V8 Swapped
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