'97 EVO EFI noise?

Dean Chowenhill · May 19th, 2009, 11:00 AM

I have a "rattling" noise I can not locate. It has been there for a while. Recently, new pistons, cam and lifters - noise still there.
I suspect it is in the EFI system, maybe a solinoid.

It happens between 2,500 and 3,000 rpm and mainly when slightly accelerating.

Any help out there on this one?

dean

glider · May 19th, 2009, 12:08 PM

What octane fuel? You need a good grade of high test if it's pinging/rattling.(93 octane like Sunoco)

Hobbit · May 19th, 2009, 12:24 PM

yep its pinging you may need to alter the timing to match the cam and as Glider says try higher octane fuel first, sounds like loose metal on metal, my dyna did it and still does a little when you open the throttle hard

R. Lewis · May 19th, 2009, 12:28 PM

Just asking here ---- could it be a loose header pipe / exhaust "rattling" ???

Dean Chowenhill · May 19th, 2009, 10:28 PM

Not pinging - using the highest octane gas I can buy in CA. I know pinging. This is more like rattling marbles in a tin can. Not on hard acceleration - constant rattling at about 2,800 rpm.
I read a lot of your answers and respect your opinion, thanks for the info.
dean

Exactly what it sounds like and is the first thing I checked and double checked. The noise is higher in the engine.

Fossil · May 19th, 2009, 11:34 PM

Recently, new pistons, cam and lifters - noise still there.
Have you checked to make sure the push rods are adjusted right? As in are you sure you do not have a lifter failing to pump up. Being an Ultra there could be some thing in the fairing, etc. rattling. Fossil

glider · May 20th, 2009, 06:50 AM

Quote:

Originally Posted by Dean Chowenhill

Not pinging - using the highest octane gas I can buy in CA. I know pinging. This is more like rattling marbles in a tin can. Not on hard acceleration - constant rattling at about 2,800 rpm.
I read a lot of your answers and respect your opinion, thanks for the info.
dean

CA kind of says it all. The lean running engines in CA have a host of problems. Try an octane booster and see if it helps eliminate the noise. Being a '97 bike, I would think it is a carbed engine so a rejetting may help your problem. The low speed circuit should be upped to a #46 jet. If it is a fuel injected bike, then a TFI would do the job.

You didn't mention the octane rating of the fuel you use.

STEVE07 · May 20th, 2009, 07:03 AM

If you eliminate it being a detonation ping and you have no exhaust leak stiick a small bar with a 90*bend on it into your mufflers,grab the baffles with it and give them a little push,then a tug.A loose baffle can give a terrible rattle at certain rpm's

May 19th, 2009, 11:00 AM	#1
Dean Chowenhill New Family Ride: 1997 Electra Glide Ultra Join Date: Aug 16th, 2008 Posts: 6	'97 EVO EFI noise? I have a "rattling" noise I can not locate. It has been there for a while. Recently, new pistons, cam and lifters - noise still there. I suspect it is in the EFI system, maybe a solinoid. It happens between 2,500 and 3,000 rpm and mainly when slightly accelerating. Any help out there on this one? dean

May 19th, 2009, 12:08 PM	#2
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 21,062 My Mood:	Re: '97 EVO EFI noise? What octane fuel? You need a good grade of high test if it's pinging/rattling.(93 octane like Sunoco) __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

May 19th, 2009, 12:24 PM	#3
Hobbit Moderators Ride: 09 CVO Ultra Classic Join Date: May 18th, 2007 Location: The Shires UK Posts: 8,737 My Mood:	Re: '97 EVO EFI noise? yep its pinging you may need to alter the timing to match the cam and as Glider says try higher octane fuel first, sounds like loose metal on metal, my dyna did it and still does a little when you open the throttle hard __________________ Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. >>Self Help Information and Tips<< click me!

May 19th, 2009, 10:28 PM	#5
Dean Chowenhill New Family Ride: 1997 Electra Glide Ultra Join Date: Aug 16th, 2008 Posts: 6	Not pinging - using the highest octane gas I can buy in CA. I know pinging. This is more like rattling marbles in a tin can. Not on hard acceleration - constant rattling at about 2,800 rpm. I read a lot of your answers and respect your opinion, thanks for the info. dean Exactly what it sounds like and is the first thing I checked and double checked. The noise is higher in the engine. Last edited by Speed; May 20th, 2009 at 10:19 AM. Reason: merged

May 19th, 2009, 11:34 PM	#6
Fossil Play The Throttle Ride: 1988 Sport Glide FLHS Join Date: Jul 12th, 2008 Location: Panhandle of Florida Posts: 195	Re: '97 EVO EFI noise? Recently, new pistons, cam and lifters - noise still there. Have you checked to make sure the push rods are adjusted right? As in are you sure you do not have a lifter failing to pump up. Being an Ultra there could be some thing in the fairing, etc. rattling. Fossil

May 19th, 2009, 12:28 PM	#4
R. Lewis Moderators Ride: 07 EG UC Black Pearl Join Date: Nov 3rd, 2007 Location: Bourbon, Missouri Posts: 1,705 My Mood:	Re: '97 EVO EFI noise? Just asking here ---- could it be a loose header pipe / exhaust "rattling" ??? __________________ Out in the middle of nowhere - but still close enough to somewhere!

May 20th, 2009, 07:03 AM	#8
STEVE07 Moderators Ride: 2007FLHTC Join Date: Oct 4th, 2008 Location: Kitchener Ontario Canada Posts: 3,577 My Mood:	Re: '97 EVO EFI noise? If you eliminate it being a detonation ping and you have no exhaust leak stiick a small bar with a 90bend on it into your mufflers,grab the baffles with it and give them a little push,then a tug.A loose baffle can give a terrible rattle at certain rpm's __________________ Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips*<< click me!

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

'97 EVO EFI noise?

Electrical