Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 05-10-2007, 05:10 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
What does a bad timing chain sound like?

Specifically, a Cloyes Street True Roller in a 390. It's got this obnoxious little tick that it's had for quite a while. I had the fuel pump out when converting it over to EFI (installing block out plate), and I noticed then that the timing chain was somewhat loose. Now, this motor couldn't possibly have 30,000 miles on it yet.

Here's what it does. I can go down the road, at some speed. If I maintain a steady speed, with the engine at about 1500rpm's or above, it'll start to make the noise. It isn't real loud, but my ears are well tuned. It does it the whole time, even when I let off the gas. Actually, especially when I let off the gas. It goes away abruptly when the RPM's get below 1200 or so.

I've already played around with timing, and plus the thing is now running E85 (105 octane). So I'm pretty sure it's not pinging. I just went through the valvetrain and adjusted lifter preload not 100 miles ago, and all the lobes were in good shape. Plus, we already know the timing chain is at least a little loose.

So anyway, back to the question in the title. After that, what is a good brand to get that has given good service for others on here? I thought Cloyes was good, but now I'm not so sure.
Reply With Quote
  #2 (permalink)  
Old 05-10-2007, 06:53 PM
ranch67 ranch67 is offline
Junior User
 
Join Date: Aug 2001
Posts: 87
ranch67 is starting off with a positive reputation.
does it tick only while driving? how about parked?
i haven had a problem with my Cloyes yet.
but, mine is spankin new.
Reply With Quote
  #3 (permalink)  
Old 05-10-2007, 07:01 PM
Redmanbob's Avatar
Redmanbob Redmanbob is offline
Postmaster
 
Join Date: Oct 2005
Location: Mddl A MexCans
Posts: 3,770
Redmanbob is gaining momentum as a positive member of FTE.Redmanbob is gaining momentum as a positive member of FTE.
If the chain is bad it's show under a timing light as a fluctuating mark. Hook the light up, watch it at adle the slowly revi it up... no flucuation.. dont think it's the chain. My truck had an original plastic tooth setup with who knows how many miles on it, chain must have had better than 3/4 slack and it didnt have a wavy marker....

I'm thinking dizzy gear/shaft maybe ?
__________________
66 F100 352FE / Cruiso
71 F250 360FE /C6
CRATE = Cant Really Appreciate The Engine..
Reply With Quote
  #4 (permalink)  
Old 05-10-2007, 08:43 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
I'll check tomorrow.
Reply With Quote
  #5 (permalink)  
Old 05-10-2007, 09:06 PM
JBradley500's Avatar
JBradley500 JBradley500 is offline
Posting Guru
 
Join Date: Jul 2006
Location: America
Posts: 1,354
JBradley500 is starting off with a positive reputation.
make sure if you check with the timing light that you dont have really good spark plug wires(use old junk). if you use the ones that come with a DUI the light will jump because they are such good insulators.
__________________
410ci (9.8:1), CHI heads, Roller Cam, T18, NP205, D60's, 39.5 Boggers.
Reply With Quote
  #6 (permalink)  
Old 05-10-2007, 09:26 PM
Redmanbob's Avatar
Redmanbob Redmanbob is offline
Postmaster
 
Join Date: Oct 2005
Location: Mddl A MexCans
Posts: 3,770
Redmanbob is gaining momentum as a positive member of FTE.Redmanbob is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by JBradley500
make sure if you check with the timing light that you dont have really good spark plug wires(use old junk). if you use the ones that come with a DUI the light will jump because they are such good insulators.

What ? Just HTF are better wires going to cause a irratic timing sequence? If you installed a DUI in a older motor you timing chain or some other ^*&*(was the reason for the flux not the wires) Dont think so leaver the freeking wires in place and put the old dizzy back and tell me the results.
__________________
66 F100 352FE / Cruiso
71 F250 360FE /C6
CRATE = Cant Really Appreciate The Engine..
Reply With Quote
  #7 (permalink)  
Old 05-11-2007, 10:47 AM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
LOL, I haven't checked yet, but here's my ignition system:

Duraspark distributor
Crane HI-6 ignition
Crane LX-91 coil
Napa 8mm plug wires.

I have to make sure to disable multiple spark on the ignition before I check it. I have set timing on this motor a couple times before, and the timing light never had a problem.
Reply With Quote
  #8 (permalink)  
Old 05-11-2007, 12:03 PM
PerfDistIgnition PerfDistIgnition is online now
FTE Sponsor
 
Join Date: Aug 2006
Posts: 751
PerfDistIgnition is starting off with a positive reputation.
Our Live Wires should NOT cause the timing mark to jump.
__________________
FTE Sponsor
Performance Distributors
www.PerformanceDistributors.com
Reply With Quote
  #9 (permalink)  
Old 05-11-2007, 12:47 PM
Redmanbob's Avatar
Redmanbob Redmanbob is offline
Postmaster
 
Join Date: Oct 2005
Location: Mddl A MexCans
Posts: 3,770
Redmanbob is gaining momentum as a positive member of FTE.Redmanbob is gaining momentum as a positive member of FTE.
Are you quite sure because this one guys says it's so, and I'm really starting to think he might right and like wow that would be really freeky and uhmmmm yeah!!
__________________
66 F100 352FE / Cruiso
71 F250 360FE /C6
CRATE = Cant Really Appreciate The Engine..
Reply With Quote
  #10 (permalink)  
Old 05-11-2007, 01:09 PM
PerfDistIgnition PerfDistIgnition is online now
FTE Sponsor
 
Join Date: Aug 2006
Posts: 751
PerfDistIgnition is starting off with a positive reputation.
Quote:
Originally Posted by Redmanbob
Are you quite sure because this one guys says it's so, and I'm really starting to think he might right and like wow that would be really freeky and uhmmmm yeah!!
Yes, our Live Wires have been on the market since the early '90's with no problems.

http://www.performancedistributors.com/livewire.htm
__________________
FTE Sponsor
Performance Distributors
www.PerformanceDistributors.com
Reply With Quote
  #11 (permalink)  
Old 05-11-2007, 08:01 PM
JBradley500's Avatar
JBradley500 JBradley500 is offline
Posting Guru
 
Join Date: Jul 2006
Location: America
Posts: 1,354
JBradley500 is starting off with a positive reputation.
we needed to pull back some of the outer insulation on the wires or put a older wire on it to correctly time the engine.
__________________
410ci (9.8:1), CHI heads, Roller Cam, T18, NP205, D60's, 39.5 Boggers.
Reply With Quote
  #12 (permalink)  
Old 05-11-2007, 11:06 PM
Hypoid's Avatar
Hypoid Hypoid is offline
Postmaster
 
Join Date: Apr 2004
Location: Golden, CO
Posts: 2,524
Hypoid has a good reputation on FTE.Hypoid has a good reputation on FTE.
That's pretty wild JBrad! Did you try a few different timing lights to see what might happen?

Different equipment, but my state-of-the-art digital test equipment can get locked in a loop, my cheaper rebuilt replacement parts have quality issues...some days I don't know which customer service rep to cuss out! It's up to me to sort things out, no relying on anything but the old noggin.
__________________
NO PRIDE-NO SHAME
'74 F-100 4x4: It's ugly, loud and smelly. Those are it's good points!

'96 Ranger XLT, 2.3L, 5-speed, 2 wheel drive.

Email me at Hypoids.haus at yahoo, visit me at RMFTC.com/forums
Reply With Quote
  #13 (permalink)  
Old 05-11-2007, 11:13 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
Nope, nice and stable timing. But I did pull off the block out plate where the fuel pump went, and there's a good 1/2" slack in the timing chain itself.

Or it could just be an exhaust leak. Would I necessarily hear an exhaust leak on deceleration, completely off the throttle?
Reply With Quote
  #14 (permalink)  
Old 05-11-2007, 11:54 PM
Hypoid's Avatar
Hypoid Hypoid is offline
Postmaster
 
Join Date: Apr 2004
Location: Golden, CO
Posts: 2,524
Hypoid has a good reputation on FTE.Hypoid has a good reputation on FTE.
Hmmm, that's when things quiet down...you are likely to hear a lot of things. Have you tried taking a spin with the belts removed? Tried reproducing the sound in the driveway? I wouldn't rule out a discharge from the secondary wiring just because the engine runs well.

Someone posted a procedure for checking timing chain slack: Pop the cap off the dizzy, turn the crank back and forth, see how much the crank turns before the rotor turns. I don't remember what the acceptable limits are, all my junk is worn out. My chain sounded like a bicycle chain, my dizzy made several different and interesting sounds. This was while playing with a stethoscope in the driveway.
__________________
NO PRIDE-NO SHAME
'74 F-100 4x4: It's ugly, loud and smelly. Those are it's good points!

'96 Ranger XLT, 2.3L, 5-speed, 2 wheel drive.

Email me at Hypoids.haus at yahoo, visit me at RMFTC.com/forums
Reply With Quote
  #15 (permalink)  
Old 05-12-2007, 07:41 AM
JBradley500's Avatar
JBradley500 JBradley500 is offline
Posting Guru
 
Join Date: Jul 2006
Location: America
Posts: 1,354
JBradley500 is starting off with a positive reputation.
we didnt try a different timing light.....its probably a good chance if you use an older style light you wont have problems, but the digital snap-on used gave us this problem.
__________________
410ci (9.8:1), CHI heads, Roller Cam, T18, NP205, D60's, 39.5 Boggers.
Reply With Quote
Old 05-12-2007, 07:41 AM
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)

Tags
352, 60, bad, chain, distributor, f150, fluctuating, ford, noise, slap, sound, system, time, timing, v8

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 03:01 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup