Tappets
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Novice
Joined: Jun 2007
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Tappets
Hello,
Can anyone tell me which way to install the tappets on a 05-road king twin cam engine? Do you install with the oil hole towards the cylinders or towards the cam cover side or does it really matter on the twin cams?
Thanks in advance.
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Novice
Joined: Jun 2007
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RE: Tappets
Hey Doc 1 the reason I was asking about the tappet location is I have a valve rattle since I installed the S.E. 203 cams and can not seem to locate the problem. Re-checked the pinion and rear cam gear spacing, its at 3 thousands, well with in the 10 thousand’s tolerance, re-checked the cam bearings. I installed adjustable push rods with no help. I have added a half a turn over the 2 1/2 turns recommended in the set up instruction on the front push rods {it sounds like its coming from the front cylinder}. I checked the tappet rollers also.
I rode my 48 pan for 18 years with solid tappets and they didn't make as much noise as this twin cam does.
I had a small vale train noise before I installed the 203's. Could the higher lift {.510} increase what I heard before the install? I even thought maybe that one of the lifters was not pumping up completely or bleeding off during the lifter stroke.
Any ideas would be greatly appreciated.
Road Master
Joined: Jan 2006
Posts: 1,154
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From: South Bend, In
RE: Tappets
Radio,
I know Doc had to go out of town this week. So you may not get a response until next week.
On another note I also gained some top end noise after doing a 95 with Andrews 26A cam. I guess we just have to get use to it. I can't find anything wrong and the bike runs great.
I know Doc had to go out of town this week. So you may not get a response until next week.
On another note I also gained some top end noise after doing a 95 with Andrews 26A cam. I guess we just have to get use to it. I can't find anything wrong and the bike runs great.
Road Captain
Joined: Feb 2005
Posts: 611
Likes: 21
From:
RE: Tappets
Did you reuse your original lifters or install new ones? If you have over a couple thousand on them I install new "B"ones with a new cam. If nothing else cheap insurance. Hole orintation as Doc said doesn't matter. Make sure the lifters were pumped up good and push rods were at 0 lash b4 making your 2 1/2 turns. An old fashion triger oil can with some one holding the hose tip to the hole in lifter while you pump can till all the air is out of the lifter works great to make sure they are pumped up. The last 2 bikes I changed cams on came with the holes backward from the factory where the manual said to point them. Go figure. Also a Latus oil spring will help increase oil pressure and might help. Can explain more on the spring if needed.
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RE: Tappets
Thanks JLOCKHART29; I have ordered a new set of feuling hydraulic lifters, that’s the only thing I did not replace. I would like some more information on the bypass spring you mentioned.
Thanks again
Thanks again
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Road Captain
Joined: Feb 2005
Posts: 611
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From:
RE: Tappets
Hear is a couple of links: http://www.latus-harley-davidson.com...htmode=1#M1937 You can order the spring directly from Mike at Latus. There are 2 sizes. Be sure to get the right one. One is for a normal modified motor such as 95% of the build and the other for full blown race motors. In a nut shell the spring increases the the oil pressure 15% helping to keep the lifters pumped up and reducing noise. Hear is another link about how to put it in w/o removing the plate. Have not done it that way myself though. http://www.latus-harley-davidson.com...=6&start=1 Hear is a pic of me pointing to the location of the spring. There is a small black "dot" left of the stamped #1 on the plate. That dot is the pin that holds the spring in the plate.
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