Topic: Change of Plans (Read 3983 times)

Z10 · « **on:** February 01, 2012, 02:06:33 PM »

After talking to Bob Woods and a few others, I've decided to go with the 07 and up style cam support plate and new cams. I'm considering the TW 5-6R or the 5-5R. Talked to Scott at Hillside Cycle. He asked if I knew what the compression ratio is on the my bike. I went to the factory manual and it lists 9 to 1. Did a search on the forum and saw one thread where someone with a 05 FLHTCUSE was doing the same thing and stated the factory CPR was 9 to 1, heads 95cc. Scott said both of those cams require at least a 9.5 to 1 preferably 10 to 1. I thought the 103 CVO motors were 10 to 1 motors out of the factory but apparently not. So my only option is to pull the heads, have them resurfaced and install the .030 gasket. Planning on pulling them this weekend and sending them to Scott.

Not looking to make this bike into a bar hopping bagger. It's a touring bike with a lot of two up riding with an Aluma trailer sometime in tow. The next 3 to 5 years it will be seeing a lot of the German autobahn and the twisites of the swiss alps. Sounds like my cam options are limited unless I bump up the compression.

If anyone has installed the two Woods cams I referenced above in a 103 CVO motor without doing any other mods I'd like to hear the results. Did you encounter pinging?

Jim

HD Street Performance · « **Reply #1 on:** February 01, 2012, 04:16:26 PM »

The motor has about 8.3/1. All of the 103 CVO heads I have fluid checked are in the high 97-98cc range.
Install domed pistons to get up to 10/1 and those cams work fine. I have done a few.

MadCVORG · « **Reply #2 on:** February 03, 2012, 11:43:18 PM »

Definitely bump up your CR. I'm having my SERG fitted with SE 10.5 pistons and custom cams. You'll definitely notice the difference, and when you're running the higher elevations in the Alps, you'll retain more power. German gas is plenty good for the higher CR.

Z10 · « **Reply #3 on:** February 05, 2012, 04:36:59 PM »

Pulled the heads today. Shipping them to Hillside Cycle tomorrow. Look what I found when I pulled the aircleaner backing plate. Also did a pinion runout check. Pictured are the max readings. Is that the norm for a stock crank? Pistons had a little more carbon on them than I'd like to see. Especially the darker rear cylinder. It appears you can adjust idle on these FI motors. Isn't that what the recessed screw is for behind the TB gasket at about 5:00 when looking into the TB?

Z10 · « **Reply #4 on:** February 05, 2012, 04:38:09 PM »

Runout Reading

Z10 · « **Reply #5 on:** February 05, 2012, 04:38:58 PM »

Runout

Z10 · « **Reply #6 on:** February 05, 2012, 04:40:03 PM »

Rear piston

Z10 · « **Reply #7 on:** February 05, 2012, 04:41:14 PM »

Front piston

grc · « **Reply #8 on:** February 05, 2012, 05:11:30 PM »

Quote from: Z10 on February 05, 2012, 04:36:59 PM

Pulled the heads today. Shipping them to Hillside Cycle tomorrow. Look what I found when I pulled the aircleaner backing plate. Also did a pinion runout check. Pictured are the max readings. Is that the norm for a stock crank? Pistons had a little more carbon on them than I'd like to see. Especially the darker rear cylinder. It appears you can adjust idle on these FI motors. Isn't that what the recessed screw is for behind the TB gasket at about 5:00 when looking into the TB?

Nope, that screw is not an idle adjustment, and you really don't want to mess with it unless you fully understand the impact it can have on the operation of the IAC (Idle Air Control). The idle air control is a separate part that attaches to the throttle body, and in conjunction with the ECM it controls the actual idle speed. If you want to change idle speed, you will need to do it electronically in the ECM.

If the throttle blade setting does get moved, there are ways to reset it using a voltmeter, or a feeler gauge if close enough for government work is OK for you. It is best, however, to leave it alone.

The 2006 and earlier Twin Cam cranks had an upper wear limit of .003", and when new were around .001-.0015" in my limited experience. With the 2007 and later engines, multiply everything by four.

Jerry

Z10 · « **Reply #9 on:** February 05, 2012, 05:15:12 PM »

Quote from: Z10 on February 05, 2012, 04:38:58 PM

Runout

Brain-fart....Going to re-do the run out zeroing the dial at the negative reading. Still looks like I'll be within the .003 limit.

Z10 · « **Reply #10 on:** February 05, 2012, 05:19:08 PM »

Quote from: grc on February 05, 2012, 05:11:30 PM

if close enough for government work is OK for you. It is best, however, to leave it alone.

Even though I am a government employee, I'll leave it alone...thanks.

CVO2FIXUP · « **Reply #11 on:** February 08, 2012, 07:12:59 PM »

Once you get your heads back. Can you please post some picks of the port job. Good shots of the intake and exhaust ports. Cheers.

Z10 · « **Reply #12 on:** February 16, 2012, 08:16:42 PM »

Fed Ex should be visiting the house tomorrow with my heads and parts from Hillside Cycle. The header pipes from Jet Hot in Burlington NC should be here as well.

3 day weekend, home alone (wife visiting parents in SC), a scoot in the garage that needs some work....life is good

Glad I pulled the heads and sent them to Scott and the boys from Hillside. They found a bent exhaust valve.

timo482 · « **Reply #13 on:** February 16, 2012, 08:45:11 PM »

was that the cause of the ick on top of the rear piston?

did you just snatch victory from the jaws of defeat by taking it apart just before it went boom

must be living right

Z10 · « **Reply #14 on:** February 16, 2012, 08:54:16 PM »

Don't see anything marks on the piston indicating interference with a valve.

hogasm · « **Reply #15 on:** February 17, 2012, 06:56:44 AM »

Did you perform a leak down test before tear down

It helps to answers questions when tearing down

Z10 · « **Reply #16 on:** February 18, 2012, 07:22:13 AM »

Quote from: hogasm on February 17, 2012, 06:56:44 AM

Did you perform a leak down test before tear down

No...I did not. Pulling the heads wasn't in the original plans. It was a late addition after I decided to go with the new cam plate and cams. Pulled them to be resurfaced and cc'd. Didn't think about performing a leakdown. Lessoned learned.

Time to go out in the garage.

hogasm · « **Reply #17 on:** February 18, 2012, 06:49:41 PM »

Quote from: Z10 on February 18, 2012, 07:22:13 AM

Time to go out in the garage.

Might as well

Going to start getting chitty on us later tonight

timo482 · « **Reply #18 on:** February 18, 2012, 07:45:42 PM »

what i meant was that a bent valve will be leaky - that will cause heat and poor running - and eventually can seize a valve as the stem will be getting coated with crap from poor combustion. a bent or damaged valve may not ever hit the piston - but will cause all kinds of other trouble - its good to find it before all the other trouble.

on shovels the valve stems would get crappy and stick - making life really unfun and expensive - had those issues 3 times over the years on shovels.

to

Z10 · « **Reply #19 on:** February 19, 2012, 06:54:39 AM »

Quote from: timo482 on February 18, 2012, 07:45:42 PM

what i meant was that a bent valve will be leaky - that will cause heat and poor running - and eventually can seize a valve as the stem will be getting coated with crap from poor combustion. a bent or damaged valve may not ever hit the piston - but will cause all kinds of other trouble - its good to find it before all the other trouble.

@timo482: This bike always had a idle that seemed to be right at the min. limit. Idle wasn't as smooth as my Evo...thought it was the nature of the beast. Must have been the bent valve. You can see where only half of the valve was contacting the valve seat. The other half is clean, no contact marks at all. Will post pics.

Thanks Jet Hot for the quick turn. They got the pipes late Tuesday afternoon and shipped them on Friday. Wasn't expecting them till Monday. They showed up yesterday. Could be putting fire in the holes this afternoon!

Pipes loof great. Too nice to cover. Went with the 1300 series coating inside and out. They have two higher temp coatings but not in silver and the Burlington facility doesn't have the capability to apply them. Have to ship part to Oklahoma CIty.

Z10 · « **Reply #20 on:** February 19, 2012, 06:55:21 AM »

Inside

Z10 · « **Reply #21 on:** February 20, 2012, 08:53:21 PM »

Bike is once again FMC (those of you in the who were aircraft maintainers in the AF should remember that acronym...Fully Mission Capable.) Took around the neighborhood...WOW...what a difference!!! Taking it to work Wednesday.

You're right Scott....feels like a completely different bike.

Z10 · « **Reply #22 on:** February 20, 2012, 08:56:11 PM »

Here's a picture of the bent valve and a youtube video of it spinning in the drill. Looks like it was contacting the seat only half way around.

Z10 · « **Reply #23 on:** February 22, 2012, 09:06:21 PM »

Took the scoot to work this morning. A 35 mile commute one way with about 27 miles of that being on I-64. Very happy with the performance. Looking for a reputable local dyno jet tuner. Talked to Bob Wood, his recommendation is about 150 miles from here in Raleigh NC, Ray Price HD. Planning on taking it there over a weekend. Currently running a tune Dyno Jet sent me.

Oil pressure while underway seems to be a tad higher. However I still have the same low reading at idle. Just off 0. Not going to worry about it unless I see a light. Looks like I need to drain a little oil. When warm the bike read full on the digital gage and slightly over full when viewing the dipstick. When I checked the oil before I left work (by hitting the button) it showed low (bottom square flashing.) By the time I got off base and at the first light I checked it again and all blocks were showing. Going to ride it again tomorrow I'm going to check it again before I leave and verify illuminated reading by pulling the stick.

Just read a number of posts where most keep their level at the half way point. Sounds like sound advice that I'm going to follow. Always get a warm reading just after shutdown. No intake misting noted today. Inside bottom of aircleaner is still dry. Before I broke the bike out last month I was having nose bleeds, mostly in the summer. Been known to pull the aircleaner cover, clean it real well, confiscate one of my wifes panty liners and place it inside the aircleaner cover to catch the drips. Hey...it works!

Skillet · « **Reply #24 on:** February 22, 2012, 09:40:48 PM »

Quote from: Z10 on February 22, 2012, 09:06:21 PM

Took the scoot to work this morning. A 35 mile commute one way with about 27 miles of that being on I-64. Very happy with the performance. Looking for a reputable local dyno jet tuner. Talked to Bob Wood, his recommendation is about 150 miles from here in Raleigh NC, Ray Price HD. Planning on taking it there over a weekend. Currently running a tune Dyno Jet sent me.

Oil pressure while underway seems to be a tad higher. However I still have the same low reading at idle. Just off 0. Not going to worry about it unless I see a light. Looks like I need to drain a little oil. When warm the bike read full on the digital gage and slightly over full when viewing the dipstick. When I checked the oil before I left work (by hitting the button) it showed low (bottom square flashing.) By the time I got off base and at the first light I checked it again and all blocks were showing. Going to ride it again tomorrow I'm going to check it again before I leave and verify illuminated reading by pulling the stick.

Just read a number of posts where most keep their level at the half way point. Sounds like sound advice that I'm going to follow. Always get a warm reading just after shutdown. No intake misting noted today. Inside bottom of aircleaner is still dry. Before I broke the bike out last month I was having nose bleeds, mostly in the summer. Been known to pull the aircleaner cover, clean it real well, confiscate one of my wifes panty liners and place it inside the aircleaner cover to catch the drips. Hey...it works!

You should get a great tune from Ray Price. He has been in the racing business for a very long time. Good luck.

barefoot3zk5 · « **Reply #25 on:** February 22, 2012, 10:21:10 PM »

Hell yea Ray Price .. He was The king of the hill in Top Fuel Harley .. he knew how to get it down the track ..

Author Topic: Change of Plans (Read 3983 times)

hogasm

hogasm