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| re: 2.5 engine lifespan (Page 1/1) |
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TheDigitalAlchemist
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OCT 07, 06:38 PM
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I know there are a million variables involved, but what would you say the average lifespan (mileage) of a “well maintained “/not abused 2.5 L is…
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Patrick
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OCT 07, 07:39 PM
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skywurz
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OCT 07, 10:24 PM
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theogre
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OCT 08, 01:03 AM
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200,000 to 300,000 miles is easy but timing gear will likely need replacing way before that.
Even if is replace w/ Aluminum gear can fail again.
Plus most can't or won't install a balancer on the crank as covered in my Cave, Cam Gears
If have problems w/ Distributor or oil pump that make more load that the cam gear must eat too.
If you have 88+ w/ oil filter in the pan...
the engine ballancer / oil pump unit can fail totally and often destroy the engine.
So If you hear bottom end noise expect bad ballancer and very hard to replace or rebuild them now.------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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KennyC
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OCT 08, 01:38 AM
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We had one that had been abused before we got it and yet was still running at around 380k. Compression was getting low in a few cylinders but it would still bury the speedometer needle on the highway past the numbers once it got up to speed
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Dennis LaGrua
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OCT 08, 01:18 PM
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| quote | Originally posted by TheDigitalAlchemist:
I know there are a million variables involved, but what would you say the average lifespan (mileage) of a “well maintained “/not abused 2.5 L is… |
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I would guess 200K miles is a reasonable estimate for an engine always maintained and used as intended with no missed shifts that have caused the revs to go above 5,000 RPM. Duke engines were once used in postal vans but in UPS trucks as well; heavy use but rather low RPM driving. They are reliable and in good shape and with the 5 speed manual Isuzu trans they have provided near 50 hwy mpg, less with the 4 speed and even less with the auto.. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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2.5
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OCT 08, 04:43 PM
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When I sold my 1st Fiero, an 86 base coupe with a Duke, it had 275k on it, ran great.
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hyperv6
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OCT 08, 05:40 PM
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My uncle just lost one in a S10 with 300,000
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theogre
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OCT 08, 07:38 PM
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VIN A & E for trucks and USPS LLV are different then VIN R and U dukes for cars and many things on/in them won't work in cars.
They often even use different ECM and EGR control by ECM.
VIN R & U won't play w/ each other too beyond a few parts.
Even in VIN R there's many changes above what's in my Cave, Duke Quick Ref and saying they last a long time doesn't wash because of the changes.
Note that USPS LLV have many burn up mainly because is the USPS service shops often don't do anything to stop it. Is not just service staff causing that but USPS itself. They even try claiming their is same problem as Fiero but is not.
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