Question about Harley Davidson FXST - FXSTI Softail standard Motorcycles

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How do i adjust my rockers on the rear jug took apart 2 fix base gaskets on rear jug

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If your bike is equipped with the Evolution engine there is no adjustment on the rocker arms, the engine is equipped with hydraulic tappets. The pushrods on the Big Twin Evo engine are color coded and go in a particular position. They are different lengths. The blue color coded pushrod is the rear intake pushrod, the purple color coded pushrod is the exhaust pushrod. The pushrods for the Evo Sportster are all the same and there is no adjustment on those eiher provided they are stock.

Now, if you are working on something other than an Evolution engine or you have aftermarket pushrods, please repost and I'll tell you what I know about the valve adjustment for your engine.


Posted on Mar 27, 2011


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If this all happened after pan gasket change, chances are you knocked the oil pump pickup and the pump is sucking air. You've lost oil pressure. Fix that. Do NOT add washers. That's not your problem.

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Order new Rocker Cover gasket for your Engine Code located at top of motor nameplate)
Drain Oil. 3 pints SAE 30
Remove OHV rocker cover 4 bolts carefully and remove rocker cover and toss old gasket. Clean rocker cover with a clean rag and set aside. Fetch standard feeler guage which has a .003" and a .005" available.
Exaust valve .005" is the top one and Intake .003" is the bottom.
First check the gap between the rocker arm and valve tip.
If they need adjusting then you will need star driver to slightly loosen the center star screw then use a 10mm or 3\8 ( i think )
To slighty adjust the outter bolt until its almost tight to feeler guage then at same time while holding the outside bolt, tighten the stardrive center until tight. It will still pull it in a bit is why I say "almost tight".
You will need to reinstall new OHV rocker gasket around the rocker pan, set the top 2 bolts to help align and you might need to shift the rocker cover upward while bolt it down so the bottom edge is high enough onto motor. Do not over tighten. Aluminum is soft. You may use some "weakest" loc-tite product but I never do.

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I have a craftsman lawnmower with a 24 horse intek motor with the 4 screws holding air filter. it has started leaking oil at base of the left jug. it is leaking right at the bottom of it so i cant see...

I am assuming you are calling the cylinder the jug on the engine. If you think the engine is leaking oil from the cylinder you have to replace the crankcase. The cylinder does not separate form the crankcase as they do on atvs. If you see the leak at a gasket, it could be a blown head gasket, valve cover gasket or a sump gasket. The sump gasket is the gasket between the crankcase and the sump. The sump is the part of the engine the mounting screws thread into. The valve cover gasket is between the head and the stamped steel cover. Replacing the valve cover gasket is easy. Just remove the four bolts to remove the cover. Then clean the old gasket off. You can apply a thin layer of rtv to help seal the valve cover. The head gasket is between the cylinder and the head of the engine. If this gasket fails, the engine can burn oil and/or leak oil. The head gasket is more involved to replace. You need a set of feeler gauges and a toque wrench to do the repair

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I replaced intake gaskets on my 91 it started and i didnot have the rocker arms on tight enough so i retightned them and nw it wont start how do i make shore the timming is right

year? model?engine? there no reason for the timing to be off, unless you took the distributor out? you may just have to crank it until the lifters pump up.. if the rockers are adjustable, you have to adjust them.

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How to repair main gasket on a 1990 electra glide

I assume that by "main jug gasket" you are talking about the cylinder base gasket. If so, to fix the leak you must pull the cylinder off to get to the gasket. This is a common problem with the Evolution engine.

This job will require that the fuel tank be removed. The rocker boxes, the head, and cylinder will have to be removed from the engine. To get the heads off, the exhaust system and induction system will have to come off as well. The old gaskets will have to be replace with new ones. One other thing that will have to be replaced is the cylinder studs. There are four studs on each cylinder. Due to the problems that Harley experienced with the leakage at the cylinder bases, they came out with a new set of studs that were designed to help with this situation. You will want to replace these studs as well and a new set of rings while you're there.

This is not an extremely difficult job but it is quite involved, much too involved for me to give you all the instructions via this forum. I would advise you to purchase a H-D service manual for your bike. There are also some special tools involved in doing this job. You must have an "inch pound" and a "foot pound" torque wrench to do the job properly. You'll also need a ring compressor and a cylinder hone.

Good Luck, Steve

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Replace rocker cover gaskets on 1990 fxr

To replace the upper rocker box gaskets is not too difficult. But, if you're replacing the gaskets between the head and the lower plate, this gets a bit more involved. You must remove the fuel tank as well.

To replace the top gaskets, simply remove the four bolts and lift the top and middle plate off the lower plate. The left rear bolt on the rear cylinder is the toughest bolt to get out. Sometimes there is a hole drilled in the frame to make access to this bolt easier. If not, you'll have to shorten a hex key wrench in order to get it out. With the top and middle plates our, replace the "umbrella valve" in the middle plate making sure you put it in from the correct side. Now place the outer gasket in the lower plate, the outer and middle gasket in the middle plate and set the top plate down on them. Wiggle the plates around a bit until you get them lined up properly with each other and tighten the top four bolts down a little at a time one each bolt until they're all tight. Torque to 80 inch pounds.

If you're going to remove the lower plate, first bring the piston of one cylinder up to top dead center on the compression stroke. Remove the spark plug and rotate the engine until both valves are fully closed. Remove the air filter assembly and backing plate. Remove the large bolts on the right side of the rocker arms Slide the rocker arm shaft out of the rocker arms one at the time and remove the rocker arm and it's pushrod. Notice that the rocker arm shaft have a recess ground into them. This is so the 5/16" acts as a lock to hold the shaft in place. It must be realigned on reassembly of the rocker plate. Once you get all the rocker arms and pushrods removed, you should have the pushrod tubes out as well. Remove the rest of the bolts and lift the lower rocker box plate. Clean the bottom of the rocker box plate and top of the head.

Assembly is the reverse of disassembly. Make sure you don't get the pushrods mixed up as they are all four of different lengths and will only work properly in their correct postitions. They are color coded for their proper positions. There is no adjustment of the pushrods.
Front intake --- YELLOW
Front exhaust -- GREEN
Rear Intake --- BLUE
Rear Exhaust --- PURPLE
Lower rocker box torque values are: 5/16" bolts 15-18 foot pounds
1/4" bolts 10-13 foot pounds

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1996 road king, how to install new crank cover gasket .took cover off did not realize cam was connected.

If you removed the bolts and pried the cover off, you have made a major mistake. You probably got it to move out about a half inch or so and now you can't get it off or back on. This is a complicated job that required the disassembly of the rocker boxes on down. I can help you do the job but it is not for the faint hearted and it is too complicated to be done here. If you want to try to repair the bike yourself, please get in contact with me off-forum. My e-mail address is

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1 Answer

I have oil in coolant lots of oil its a 04vtx1800n its not brown looks like oil lots of slug milkie in upper coolant lines took apart gaskets dont look bad on head or jug im puzzeled

most likely there is a small crack in one of the heads that gets larger when engine gets hot. usually between the valves -they will have to be magnafluxed to be sure

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