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30th June 2022
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XL FORUM TEAM MEMBER
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Join Date: Nov 2017
Posts: 728 Sportster/Buell Model: XLCH Sportster/Buell Year: 1972
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oil pump install
I will be putting the oil pump back on shortly. I have a new James Gaskets set. I have the FPM and FSM.
Was wondering if there's any particular nuances to it I should know about that the FSM doesn't include?
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30th June 2022
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XL FORUM TEAM MEMBER
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Join Date: May 2010
Location: Pottstown PA.
Posts: 15,546 Sportster/Buell Model: xlch Sportster/Buell Year: 1960 Sportster/Buell Model #2: 883 C Sportster/Buell Year #2: '03
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i've found to get it timed properly because of the spiral drive gear you have to lead it a bit before you start moving it in.you'll see what i mean if you try to time it by eye before installing it.most people won't get it the first time.but you'll learn.
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72 1000cc barrels and heads, s&s 41/2'' flywheels, sifton cams, s&s super B w/ zippers thunderjet w/yost powertube, andrews gears,and shafts, competition engineering kevlar wet or dry clutch, 72 oil pump, morris magneto w/auto advance and single fire module, cycle electric generator w/electronic regulator,73 cu.in.
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1st July 2022
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XL FORUM TEAM MEMBER
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Join Date: Nov 2017
Posts: 728 Sportster/Buell Model: XLCH Sportster/Buell Year: 1972
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So is there a way to mis-time it or easily do it so wrong the engine gets ruined?
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1st July 2022
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XL FORUM TEAM MEMBER
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Join Date: Mar 2008
Posts: 4,901 Sportster/Buell Model: XLCH Sportster/Buell Year: 1969 Sportster/Buell Model #2: 1966 XLCH Other Motorcycle Model: BMW Twin Other Motorcycle Year: 82
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Oil Pump Install
Quote:
Originally Posted by Gold Member
So is there a way to mis-time it or easily do it so wrong the engine gets ruined?
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.. I would Say STOP , Locate a Service Manual and read up, the Breather ( pre 77 ) can be installed wrong, once you get your manual you will see that the pump is timed to the Pinion Gear, the Pushrods need to be removed and the Cam Cover Removed to witness this
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Cycle World Oct 1962:
'The Sportster XLCH is not every Man's cup of tea - and we don't think it was intended as such'
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1st July 2022
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XL FORUM TEAM MEMBER
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Join Date: Nov 2017
Posts: 728 Sportster/Buell Model: XLCH Sportster/Buell Year: 1972
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Okay here's where I'm at. I haven't looked at this project in a year. My memory SUCKS at my age now.
The FSM says to put heads on and take off in one procedure along with the push rods and push rod covers too I believe. I don't recall having to have the heads off in order to get the push rods out. Can't you pull the push rods out without having to take the heads off first??
I'm wanting to install the oil pump and put the heads on along with the top motor mount so I can hang it from the ceiling with a come along and get it into the frame. I'm all set with the come along. Once what I have here is in the frame, then I'll put all the other engine parts in. IIRC I can do this in this order but I really don't remember. Can I do it this way?
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1st July 2022
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XL FORUM TEAM MEMBER
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Join Date: Mar 2008
Posts: 4,901 Sportster/Buell Model: XLCH Sportster/Buell Year: 1969 Sportster/Buell Model #2: 1966 XLCH Other Motorcycle Model: BMW Twin Other Motorcycle Year: 82
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Install the Pinion Gear, it can only go on One way, see the Timing mark on the Pinion Gear Face ‘that is your start point ( you do not need to remove heads to install - remove pushrods, what manual is that Info coming from ? Your oil pump must be installed prior to setting the engine in the frame.
Last edited by Monte03; 1st July 2022 at 02:55..
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3rd July 2022
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Senior Master Custom Bike Builder
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Join Date: Jun 2008
Location: Cornelius, OR
Posts: 10,169
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*NOTE* Oil pump timing is not done at the same point in rotation as the cam timing.
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3rd July 2022
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XL FORUM TEAM MEMBER
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Join Date: Mar 2008
Posts: 4,901 Sportster/Buell Model: XLCH Sportster/Buell Year: 1969 Sportster/Buell Model #2: 1966 XLCH Other Motorcycle Model: BMW Twin Other Motorcycle Year: 82
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Pump Breather Timing
Quote:
Originally Posted by ryder rick
*NOTE* Oil pump timing is not done at the same point in rotation as the cam timing.
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... Correct, it is timed with the vertical flywheel Mark ( BEFORE Top Dead Center Vertical Mark) In the timing hole, that should place the Pin Gear Timing mark at about 11:00, the pre 77 pump breather DOT within the notch , Cam Timing is then off the Pinion Gear At about 11:00 as your starting point of Cam Installation |
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