Spring replacement help
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Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
Spring replacement help
Good afternoon my fellow Forum denizens. I need some advice/recommendations. I recently purchased a low mileage (1900 miles) 2015 CVO Street Glide. This winter I will be replacing the cams with Woods TW-7H, including lifters, pushrods, and ICB. I'll also be doing an exhaust replacement to a 2 into 1, brand yet to be determined. At the same time I'm doing all this, I would like to get the springs and valve seals replaced, as we all know the **** show the HD stock springs are on the 110's.
I live in a motorcycle shop desert here in Memphis. I've reached out to Fuel Moto and Zippers, but neither do just springs and seals. Does anyone have a shop recommendation, anywhere that does this type of work. I'll be pulling the heads myself and ship them them to whatever shop can perform the work.
I live in a motorcycle shop desert here in Memphis. I've reached out to Fuel Moto and Zippers, but neither do just springs and seals. Does anyone have a shop recommendation, anywhere that does this type of work. I'll be pulling the heads myself and ship them them to whatever shop can perform the work.
Stellar HDF Member
Joined: Feb 2013
Posts: 3,072
Likes: 1,726
From: Dallas, Texas
With all yer planning to do yo it, cleaning the heads, hand lapping the valves and replacement oil seals is a walk in the park. When ya put it back together just put the new springs in. Kinda simple. All ya need is a spring compressor, some lapping compound and the tool (small stick with a suction cup on it.)
Last edited by TexasScooterTrash; Oct 4, 2024 at 05:47 PM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,830
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From: poway
Texas has the right ide if you have the tools and motivation. You'll need a wire wheel on a bench grinder to clean the valves, maybe a soft wire wheel on the drill motor to clean the chamber and ports some.. If you don't feel comfortable with inspecting and make sure stuff is up to snuff, get a hold of this guy.. He'll rebuild about anything that HD made. FM really doesn't do any head work, they farm it out.. ASAIK.. Larry may make some suggestions that will improve the performance of those heads with minimal cost.
http://www.larrysmotorcyclemachine.com/
http://www.larrysmotorcyclemachine.com/
Thread Starter
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Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
Texas has the right ide if you have the tools and motivation. You'll need a wire wheel on a bench grinder to clean the valves, maybe a soft wire wheel on the drill motor to clean the chamber and ports some.. If you don't feel comfortable with inspecting and make sure stuff is up to snuff, get a hold of this guy.. He'll rebuild about anything that HD made. FM really doesn't do any head work, they farm it out.. ASAIK.. Larry may make some suggestions that will improve the performance of those heads with minimal cost.
http://www.larrysmotorcyclemachine.com/
http://www.larrysmotorcyclemachine.com/
My biggest concern on doing it myself on relates to installing the springs. I seem to recall reading/researching the need to "set" them correctly or something to that effect.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,830
Likes: 7,968
From: poway
Appreciate the input. I do have the tools, no issue there. I'll reach out to Larry and discuss with him.
My biggest concern on doing it myself on relates to installing the springs. I seem to recall reading/researching the need to "set" them correctly or something to that effect.
My biggest concern on doing it myself on relates to installing the springs. I seem to recall reading/researching the need to "set" them correctly or something to that effect.
What I mean by a internal caliper.
https://www.grainger.com/product/409F32?
You really only need to be accurate to +- 0.005 on the measurement which is not that hard. With practice +- 0.002 is pretty easy..
Larry can recommend and sell you a set of springs..
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Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
Setting them correctly is not really that hard. You really only need to set the spring preload. To do that you need to clean things up, install the spring seat base, and top collar then measure the distance between the collar and base then figure out whether you need to add shims.. Chances are with the milage on the heads, you won't have to do anything.. Still it's worth the check.. You can do this easy with an internal caliper and dial/digital/vernier caliper.
What I mean by a internal caliper.
https://www.grainger.com/product/409F32?
You really only need to be accurate to +- 0.005 on the measurement which is not that hard. With practice +- 0.002 is pretty easy..
Larry can recommend and sell you a set of springs..
What I mean by a internal caliper.
https://www.grainger.com/product/409F32?
You really only need to be accurate to +- 0.005 on the measurement which is not that hard. With practice +- 0.002 is pretty easy..
Larry can recommend and sell you a set of springs..
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Stellar HDF Member
Joined: Feb 2013
Posts: 3,072
Likes: 1,726
From: Dallas, Texas
When I freshened up the heads on my Dyna, I tried the DeWalt drill on low speed. Went the tool box and got out the small stick with suction cups. SUCCESS!!! Try that first, ya might get it to work for ya. 
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