Reliability/longevity of EVO vs. early Twin Cam
#1
09-21-2018, 03:48 PM
Reliability/longevity of EVO vs. early Twin Cam
I know there were issues with the chain and tensioner in the Twin Cam engines. Other than that, how much of a difference in reliability and longevity is there between the EVO models and the early Twin Cam models? Assume the Twin Cam models compared are carbureted. Also assume the whole vehicle, not just the engine.
Top Answer
09-22-2018, 05:54 AM
If you had to go between Seattle and Anchorage AK with the safest bet, it would be the EVO.
The TC depending on the year with its mechanical problems for birth defects, it also has computers that will shut it dwn.
There would be a lot of changes B4 I would be brave enough for THAT run on a TC.
On the Evo I would change out the ignition to Daytona TT and not have any worries.
The TC depending on the year with its mechanical problems for birth defects, it also has computers that will shut it dwn.
There would be a lot of changes B4 I would be brave enough for THAT run on a TC.
On the Evo I would change out the ignition to Daytona TT and not have any worries.
Bravery is in the eye of the beholder.
#3
09-21-2018, 03:56 PM
Seasoned HDF Member
Evos had issues with the INS cam bearing and base gaskets. They have likely all been fixed by now. Mine has had a Torrington bearing and James base gaskets in it for a long time now. Well over 100,000 miles and counting.
Carbs are nice because you can fix them yourself in your garage if you need to. Haven't needed to.
Carbs are nice because you can fix them yourself in your garage if you need to. Haven't needed to.
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#4
09-21-2018, 04:03 PM
Seasoned HDF Member
#5
09-21-2018, 04:37 PM
Road Warrior
Evos had issues with the INS cam bearing and base gaskets. They have likely all been fixed by now. Mine has had a Torrington bearing and James base gaskets in it for a long time now. Well over 100,000 miles and counting.
Carbs are nice because you can fix them yourself in your garage if you need to. Haven't needed to.
Carbs are nice because you can fix them yourself in your garage if you need to. Haven't needed to.
Oil would seep through the cases and was found with a die and ultra violet light to locate the seepage.
All being equal they are reliable machines that if treated like a machine and not beaten they can and do run for many miles with basic repairs.
Rob
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#6
09-21-2018, 05:26 PM
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#7
09-21-2018, 10:07 PM
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#8
09-21-2018, 10:09 PM
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#9
09-22-2018, 04:46 AM
And lifters that need be replaced more often than a TC, leaky/weepy 3 piece rocker boxes, porous cases, cracked cases, cylinder studs pulling out, cracked inner primaries on bikes that make real power because the trans and motor aren't married together......
Don't get me wrong, Twin Cams surely have their problems too. But when it comes to older HD engine designs, the romance makes people forget a lot.
Don't get me wrong, Twin Cams surely have their problems too. But when it comes to older HD engine designs, the romance makes people forget a lot.
Last edited by Campy Roadie; 09-22-2018 at 04:49 AM.
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#10
09-22-2018, 05:18 AM
Banned
The TC is a POS the MOCO is hoping to forget.
Go to your local HD on Monday morning, have a look in there'll be mostly the TC POS in there being worked on because they have exploded the timing chest or scissored the crank or any of the over 30 recalls for the bucket of schit.
The Evo is a classic and has style and charisma the TC is just a POS.
Go to your local HD on Monday morning, have a look in there'll be mostly the TC POS in there being worked on because they have exploded the timing chest or scissored the crank or any of the over 30 recalls for the bucket of schit.
The Evo is a classic and has style and charisma the TC is just a POS.
Last edited by badcooky; 09-22-2018 at 05:20 AM.
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