98 Evo Rocker Box Gaskets
Thread Starter
|
Stage IV
Joined: Jun 2019
Posts: 4
Likes: 0
From: MN
98 Evo Rocker Box Gaskets
I just replaced the Rocker Box Gaskets in my Evo. I used the James Gasket set with the metal and silicone base gaskets. The front box was leaking and we saw the two leak points in the old HD Gaskets. The only problem was that the James Umbrella gaskets in the new set wouldn't seat properly in the middle Rocker Box. Hence we ended up using the HD Umbrella gaskets. Everything went well except now I'm getting pressure in the oil filler box to the point of pushing out the dipstick. Thoughts?
Thread Starter
|
Stage IV
Joined: Jun 2019
Posts: 4
Likes: 0
From: MN
No, but I went back to it today. Started it up and let it idle for a while. The dipstick came up about an 1/8" but did not come out. Took it out for a ride. After about 5 miles, checked it out again. Dipstick was no further out and if anything, completely seated. Strange
Road Captain
Joined: Sep 2018
Posts: 547
Likes: 383
From: Phoenix
I just replaced the Rocker Box Gaskets in my Evo. I used the James Gasket set with the metal and silicone base gaskets. The front box was leaking and we saw the two leak points in the old HD Gaskets. The only problem was that the James Umbrella gaskets in the new set wouldn't seat properly in the middle Rocker Box. Hence we ended up using the HD Umbrella gaskets. Everything went well except now I'm getting pressure in the oil filler box to the point of pushing out the dipstick. Thoughts?
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,104
Likes: 7,632
From: Poolville
You are definitely better off with the green HD umbrella valves, they're better than anybody else has out there. As for the pressurized oil tank, you sure you didn't swap the rocker spacers? The front with the rear and the rear with the front as this will change the location of the umbrella valve and It will do what you're saying.
Thread Starter
|
Stage IV
Joined: Jun 2019
Posts: 4
Likes: 0
From: MN
No, did not swap. We did the rear first and then the front. As previously replied, it didn't come out today when I ran it, Starting to believe a new O-Ring on the dipstick will solve the problem if there is any, That O-Ring is 21 years old. Thank You everyone for the input.
Thread Starter
|
Stage IV
Joined: Jun 2019
Posts: 4
Likes: 0
From: MN
You are definitely better off with the green HD umbrella valves, they're better than anybody else has out there. As for the pressurized oil tank, you sure you didn't swap the rocker spacers? The front with the rear and the rear with the front as this will change the location of the umbrella valve and It will do what you're saying.
Trending Topics
Seasoned HDF Member
Joined: Apr 2010
Posts: 9,562
Likes: 7,917
From: Long Island, New York
Too much oil in the tank will also do this, I assume you drained the oil when you did the project. Maybe there is just too much and you need to drain off a half of quart. Sometimes it is easy, not often, but sometimes. Good luck.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Thread
Thread Starter
Forum
Replies
Last Post