Engine Question
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Cruiser
Joined: Feb 2008
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Engine Question
I have a question. I had 103 jugs put on my bike. The store told me they were off and said they exchanged them. But later I found out they bored a set of 96' jugs rather than exchanging the 103's. What does this mean in the way of quality and the difference in jugs ? I was thinking the bored out set would be thinner and have more of a heat problem ???? I don't know why they wouldn't just give me another set of 103's .
Ultimate HDF Member
Joined: Feb 2007
Posts: 7,663
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From: Northeast Ohio
RE: Engine Question
The 96" and 103" cylinders start out from the same set of castings, they are just bored to a different size. most 103 builds are just as yours, a set of 96" cyls bored out.
Road Master
Joined: Feb 2005
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RE: Engine Question
You paid for a 103" conversion! They bored your jugs and installed pistons? OK...matching piston to cylinder is not a bad thing, but...you paid for a new set of jugs (we assume)...demand new ones! Hell, maybe they used old pistons as well? This ain't kosher, Bro!
Road Captain
Joined: Oct 2007
Posts: 634
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From: Plum & Nearly
RE: Engine Question
96's and 88's are the same bore......3.750"
95's and 103's are the same bore.....3.875"
If they sold you an H-Dbig bore kit....then there is no exchange and I would ask for my old parts..which would be pistons and cylinders....
Boring the cylinders is OK as long as the machine shop knows what they are doing..
95's and 103's are the same bore.....3.875"
If they sold you an H-Dbig bore kit....then there is no exchange and I would ask for my old parts..which would be pistons and cylinders....
Boring the cylinders is OK as long as the machine shop knows what they are doing..
Road Master
Joined: Feb 2005
Posts: 978
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RE: Engine Question
Two of us ordered new 2008s and the Big Bore kits (cylinders, pistons, cams, exhaust and breather)....you can bet your butt I want thosew take offs! Yeah...may never use 'em, but we are paying MSRP and full labor for new cylinders...and we want the stockers...Ebay maybe...ya know damned well the stealer or wrenches will use 'em if you leave 'em and there ain't no discounts for leaving brand new parts in their hands!
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Cruiser
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RE: Engine Question
ORIGINAL: rocknrod
They are the same cylinders.
But tell us, how did you find that out?
They are the same cylinders.
But tell us, how did you find that out?
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Joined: Jul 2007
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From: Daytona, Fla.
RE: Engine Question
ORIGINAL: TakeNoCrap
I talked to the mechanic. I had a set of 103 jugs, or I was charged for them. I was told the jugs were off and causing a knocking in my engine so they pulled the old jugs and had a set of bored jugs installed. This all happen when I had the cam put in. the mechanic said there was a knocking. But there wasnt no knocking before the new cam, so im like WTF ? I still don't know why they changed the jugs.
ORIGINAL: rocknrod
They are the same cylinders.
But tell us, how did you find that out?
They are the same cylinders.
But tell us, how did you find that out?
Either way, from the things you've posted here, if I were you I would ride out of the way to stay off the street they're on & I'd go as far as it took to find a mechanic I trusted for the things I couldn't do myself.
As for fresh barells or bored, it makes no difference as long as the bore job was done correctly. My issue with what you've reported is that it sounds like they took it on themselves to make some change to your bike without your knowledge or consent. Bad enough on it's own, but if they charged you for it it amounts to theft. Your posts have me thinkin' they look at you as a cash cow. Time for you to get away from 'em.
