How do you remove head gaskets on a Harley Davidson?
You are now stripped down to the heads. You will need a 1/2″ 12 point socket to loosen your head bolts. Break them free with one sharp motion; then continue to loosen evenly in a cross pattern. Lift off your heads and remove the old head gaskets.
Why is my base gasket leaking on my 1340 Evo?
It’s just a bandaid though. The 1340 Evos are tempermental, in that not warming them up enough and riding them moderately hard can cause premature base and head gasket failures. jUST CHANGED MINE, i APPLIED THE HAYDEN OIL FIX, AND USED COMETIC BASE GASKETS AND HEAD GASKETS.
Can a Hayden oil dowel fix a base gasket?
If you go this far plan on a set of rings from hastings, then you also will need your pistons checked with your cylinders. wiseco has a complete set, as you can tell I just went through this process. I know my bike now inside and out. The hayden oil dowel fix will fix the base gasket forever, but just be prepared for unexpected costs.
You are now stripped down to the heads. You will need a 1/2″ 12 point socket to loosen your head bolts. Break them free with one sharp motion; then continue to loosen evenly in a cross pattern. Lift off your heads and remove the old head gaskets.
How much torque does a Harley Davidson cylinder head have?
Technical information on the installation of cylinder heads for Harley-Davidson motorcycles. For each cylinder head, start with head bolt numbered one. In increasing number sequence (1-2-3-4), tighten the head bolt in three stages. 1. Tighten each bolt to 7-9 foot pounds of torque. 2, Tighten each bolt to 12-14 foot pounds of torque. 3.
How do you tighten a cylinder head bolt?
Tighten each bolt 1/4 turn (90 degrees). For each cylinder head, start with head bolt numbered one. In increasing number sequence (1-2-3-4), tighten the head bolt in four stages.
How to do a Harley top end overhaul?
Harley top end overhaul is a lengthy procedure on your Twin Cam motor. Follow Mike’s instructions and refer to your service manual. You will see that a lengthy job does not necessarily make it a difficult job. By taking your time, focusing, working clean and orderly, you will find yourself moving right through this detailed repair or upgrade.
What to do if your Evo head gasket is leaking?
Look closely at the base gasket on the rear jug to see if it is leaking. If so or you decide to take the barrels off then use the Harely base gaskets for late EVO’s. Those gaskets are like using fly paper as they are sticky on both sides and until you pull the jugs loose again they will not leak.
Can a head gasket be replaced on a cyls?
Also if you have had leaking base gaskets on the left front of cyls., there is a “pigtail” fix available, but not really necessary with James or Comotec gaskets. I do not know anyone that has replaced head gaskets without doing base gaskets also. Be sure to find out why the head gasket sprung a leak.
How much does a Harley Davidson head seal cost?
Very satisfied, would recommend them. Head work, boring to a 103″, cams, $1800 from an independant. Oil seal, SE compensating sprocket, new clutch bearing, brake caliper on the rear, swingarm bearings, new speedo, clutch cable $4000 at a dealer.
How big are the head gaskets on a Harley?
Replacement Upper or Top End & Base Full Gaskets set Kit compatible with 1992-98 Harley Evo 1340 Big Twin engines with Large bore (3-5/8″) head gaskets. . Only 3 left in stock – order soon.
Are there any Harley Evo 1340 head gaskets left?
Only 7 left in stock – order soon. . Replacement Upper or Top End & Base Full Gaskets set Kit compatible with 1992-98 Harley Evo 1340 Big Twin engines with Large bore (3-5/8″) head gaskets. . Only 3 left in stock – order soon.
Also if you have had leaking base gaskets on the left front of cyls., there is a “pigtail” fix available, but not really necessary with James or Comotec gaskets. I do not know anyone that has replaced head gaskets without doing base gaskets also. Be sure to find out why the head gasket sprung a leak.
What should be in a top end head gasket?
Except for the carb stuff, all that stuff should be in a top end gasket and seals set. You might also consider new rocker arm bushings and adjustable pushrods, but the latter is a “nice to do” not “have to do”.
What causes a gasket to leak on a Harley Davidson?
It’s probably a rocker box gasket leak causing you all that trouble. 1986-2003 Harley-Davidson Sportsters are notorious for having rocker box gasket leaks. The old gaskets from the factory were poorly made in two separate pieces, over time the gaskets become brittle and useless.
Why do you need to remove the top end of a Harley?
It is important to clean and layout all of your hardware and parts in such a manner that you will be able to easily identify and remember order of reassembly. There are a few reasons for disassembling your top end. Freshen up a motor: With high miles, a motor may have excessive carbon build up on the pistons or in the heads.
How do you remove the top end of a Harley Davidson?
Label the cylinders and set aside. Now you can push clean shop towels into the openings of the crank case to protect against anything falling into your lower end, while the top end is apart. Finally, you can remove your pistons from the connecting rods. It is important to slide short lengths of rubber hose over your cylinder studs for protection.
How do you remove the Pistons from a Harley Davidson?
Finally, you can remove your pistons from the connecting rods. It is important to slide short lengths of rubber hose over your cylinder studs for protection. Then, proceed by picking out the wrist pin clips and carefully tapping the wrist pins out from the connecting rods.