Why maintenance is important
Thread Starter
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Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
Why maintenance is important
So I get a 1991 Evo softail come in with an oil leak....easy job I think to myself.
It has 57K miles on it and was leaking from the oil pump and the lifter blocks. The oil pump gaskets were not in stock so I started with the lifter blocks but upon removing the blocks I found that a lifter had shat itself a looong time ago and the lifter wheel was octagonal and blue....none of the needle rollers were present and the EV3 cam had had the hardening smashed off the corresponding lobe.
I needed to find the rollers and clean the motor out so I pulled it all apart and here is what I found:
No bits of roller but there were gouges in the oil pump where they had been through the rotors
The end of the short rotor shaft in the pump appears to have been peened over with a blunt object
The rear headgasket had gone in such a way as it had been firing down the right rear head stud and the whole thing was carboned up round the stud
It needed a rebore
Stator was shorting out on the inner primary (this is why it had a new starter and a new battery when it came in lol!)
One engine mounting stud was loose
Valve guides shot
A homemade gasket on cam cover with a ton of orange silicone blocking the tappet screen gallery
Gritty oil
Don't abuse your Harley boys and girls or Spanners will take all your money!
The owner came in and we showed him the carnage and he said it has always vibrated and he thought they all sounded like that....oh dear, I may have to hurt him....in his wallet!!!
It has 57K miles on it and was leaking from the oil pump and the lifter blocks. The oil pump gaskets were not in stock so I started with the lifter blocks but upon removing the blocks I found that a lifter had shat itself a looong time ago and the lifter wheel was octagonal and blue....none of the needle rollers were present and the EV3 cam had had the hardening smashed off the corresponding lobe.
I needed to find the rollers and clean the motor out so I pulled it all apart and here is what I found:
No bits of roller but there were gouges in the oil pump where they had been through the rotors
The end of the short rotor shaft in the pump appears to have been peened over with a blunt object
The rear headgasket had gone in such a way as it had been firing down the right rear head stud and the whole thing was carboned up round the stud
It needed a rebore
Stator was shorting out on the inner primary (this is why it had a new starter and a new battery when it came in lol!)
One engine mounting stud was loose
Valve guides shot
A homemade gasket on cam cover with a ton of orange silicone blocking the tappet screen gallery
Gritty oil
Don't abuse your Harley boys and girls or Spanners will take all your money!
The owner came in and we showed him the carnage and he said it has always vibrated and he thought they all sounded like that....oh dear, I may have to hurt him....in his wallet!!!
Thread Starter
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Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
we bought a whole case of seafoam but it did nothing for the lifter lol!
I have been absent as the organisation I work for in the day time was undergoing a restructure (I got the CEO and one of the Senior Managers sacked for not doing any work for 5 years).
Then I got dragged off to another workshop in my spare time to put a couple of FXR's back on the road and make one into a drag strip weapon....BTW, S&S 113 motors don't stay together very long if you drag race them lol!
Other than that I am still as bitter and twisted as ever and will be pulling the night shift at an Indy tonight as he has far too much work on!
Not at 400 and hour yet though.
I have been absent as the organisation I work for in the day time was undergoing a restructure (I got the CEO and one of the Senior Managers sacked for not doing any work for 5 years).
Then I got dragged off to another workshop in my spare time to put a couple of FXR's back on the road and make one into a drag strip weapon....BTW, S&S 113 motors don't stay together very long if you drag race them lol!
Other than that I am still as bitter and twisted as ever and will be pulling the night shift at an Indy tonight as he has far too much work on!
Not at 400 and hour yet though.
Elite HDF Member
Joined: Oct 2005
Posts: 3,872
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From: Canton, Michigan
Good to see ya again!
Tourer
Joined: Nov 2016
Posts: 295
Likes: 26
From: Western CT
With all that metal going through the system, he may be better off looking for a used Evo motor and build it at his discretion\budget.
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