91 5.0 Knocking sound - Page 2 - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 05-21-2012, 02:41 PM   #36
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Yeah there are no metal chunks or shavings or anything. It all looks fine. Could an exhaust leak from a header sound like what's in my video?
JayKranz is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-21-2012, 03:06 PM   #37
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
I have heard exhaust leaks make a mean ticking. But yours doesn't really sound like that. I suppose you could feel for leaks.

---------- Post added at 03:05 PM ---------- Previous post was at 03:03 PM ----------

Yeah I just listened one more time to be sure. I don't think that is an exhaust leak.

---------- Post added at 03:06 PM ---------- Previous post was at 03:05 PM ----------

Give it a little bit and see what these guys say. But looks like you may have to drop the oil pan.
dreamstang is offline   Reply With Quote
Old 05-21-2012, 03:09 PM   #38
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Okay, I didn't think so just wishfull thinking

---------- Post added at 03:09 PM ---------- Previous post was at 03:08 PM ----------

Have to lift the engine to do that, right?
JayKranz is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-21-2012, 03:13 PM   #39
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Yes you have to lift the engine. But let's see if anyone else has any good checks to do first.

I have heard leaks that sound like tickings, or knocking. But yours doesn't .
dreamstang is offline   Reply With Quote
Old 05-21-2012, 04:26 PM   #40
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: 91 5.0 Knocking sound

Maybe a busted piston skirt or cracked piston.Some times you can pull the plug wires one by one and see if on one of the cylinders the sound changes when the load is removed from it.
Trojan Horse is offline   Reply With Quote
Old 05-21-2012, 05:12 PM   #41
Forum Car Trader
Regular
 
90GTNovi2000's Avatar
 
Join Date: Apr 2012
Region: Texas
Posts: 1,150
That's a great method to check the pistons. I'm gonna store that one away for a rainy day. Also I've had starters get hung up and make a crazy noise like that while running but it was in the passenger side of the motor.. So highly doubt it..
__________________
90GTNovi2000 is offline   Reply With Quote
Old 05-21-2012, 05:22 PM   #42
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Guys I just started the car, it's pretty clear tht it's comin from the bottom of the engine. Bad luck I guess.
JayKranz is offline   Reply With Quote
Old 05-21-2012, 05:40 PM   #43
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: 91 5.0 Knocking sound

Quote:
Originally Posted by JayKranz View Post
Guys I just started the car, it's pretty clear tht it's comin from the bottom of the engine. Bad luck I guess.
That's too bad, must have spun a rod or main bearing.
I'm sorry man, I know you have been through a lot with it and now this.
Trojan Horse is offline   Reply With Quote
Old 05-21-2012, 05:47 PM   #44
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Anyone got a solid bottom end or a drop in 302 they're lookin to get rid of? . I promise it will go to a good home.

---------- Post added at 05:47 PM ---------- Previous post was at 05:46 PM ----------

Thanks TH, it's all part of the learning process. The problem is that phase one didn't last as long as I had hoped for
JayKranz is offline   Reply With Quote
Old 05-21-2012, 05:51 PM   #45
Registered Member
Regular
 
89 coupe's Avatar
 
Join Date: Feb 2012
Region: Ohio
Posts: 132
Same as Trojan Horse said, well collect your thoughts and plan your attack man. We are all here for ya, for at least moral support and good advice !!
89 coupe is offline   Reply With Quote
Old 05-21-2012, 05:52 PM   #46
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Yeah that's sad to hear. I know of a full motor that I had thought about buying. I don't remember but he wanted 300 something for it. It has been sitting a while. So its rusty. But I think I remember you saying Illinois you live? I live in northwest IN. If you need me to call him let me know.
dreamstang is offline   Reply With Quote
Old 05-21-2012, 05:56 PM   #47
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
@Dreamstang- I do live in the Chicago area. Do you happen to remember if it was a 302? I'd like something that I could throw my crappy heads and stock parts on so I can salvage some of the Summer. Otherwise it may be a year or so before I can do it. Thankyou by the way.
JayKranz is offline   Reply With Quote
Old 05-21-2012, 06:18 PM   #48
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Quote:
Originally Posted by JayKranz
@Dreamstang- I do live in the Chicago area. Do you happen to remember if it was a 302? I'd like something that I could throw my crappy heads and stock parts on so I can salvage some of the Summer. Otherwise it may be a year or so before I can do it. Thankyou by the way.
It's a totally bonestock 5.0 it has intake accessories and sensors All still attached. It's a complete motor. He said it was old lady driven but I can't gurantee that. But if anything happened to be wrong with it I'm sure he would refund the money. I worked with this dude for about 5 years. I don't remember the year but it is a roller cam and fuel injected.
dreamstang is offline   Reply With Quote
Old 05-21-2012, 06:27 PM   #49
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
I'm nervous about something like that because I already own a bone stock 302 and my sweet *** turbo killed it. I'm gonna have to sell a kidney and buy something stronger most likely.
JayKranz is offline   Reply With Quote
Old 05-21-2012, 06:32 PM   #50
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Quote:
Originally Posted by JayKranz
I'm nervous about something like that because I already own a bone stock 302 and my sweet *** turbo killed it. I'm gonna have to sell a kidney and buy something stronger most likely.
Well let me see if I can find anyone that needs a kidney.

Well if you decide you want it let me know and I will call him.
dreamstang is offline   Reply With Quote
Old 05-21-2012, 06:53 PM   #51
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Awesome, thanks buddy.
JayKranz is offline   Reply With Quote
Old 05-21-2012, 07:03 PM   #52
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
No problem man. Anything I can do to help someone.
dreamstang is offline   Reply With Quote
Old 05-21-2012, 07:10 PM   #53
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: 91 5.0 Knocking sound

Quote:
Originally Posted by JayKranz View Post
I'm nervous about something like that because I already own a bone stock 302 and my sweet *** turbo killed it. I'm gonna have to sell a kidney and buy something stronger most likely.
If you have something else to drive.......save your money and go a head and get you a good block and forged rotating assembly.
Some stock bottom ends hold up just great and others puke right away.
I wouldn't want to go through the trouble of putting another stocker in there just to have it fail shortly thereafter.
Things like that really dampen your enthusiasm, which is what happened to me with BBF's a number of years ago.
Trojan Horse is offline   Reply With Quote
Old 05-21-2012, 07:18 PM   #54
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Quote:
Originally Posted by Trojan Horse

If you have something else to drive.......save your money and go a head and get you a good block and forged rotating assembly.
Some stock bottom ends hold up just great and others puke right away.
I wouldn't want to go through the trouble of putting another stocker in there just to have it fail shortly thereafter.
Things like that really dampen your enthusiasm, which is what happened to me with BBF's a number of years ago.
This would be ideal.
dreamstang is offline   Reply With Quote
Old 05-21-2012, 07:19 PM   #55
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Agreed
JayKranz is offline   Reply With Quote
Old 05-21-2012, 07:25 PM   #56
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: 91 5.0 Knocking sound

I wish I could do something more to give you a hand.

I will keep my eyes peeled for a good deal for you.
Trojan Horse is offline   Reply With Quote
Old 05-21-2012, 07:26 PM   #57
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Thanks TH, I grabbed a car cover and that's that;$
JayKranz is offline   Reply With Quote
Old 05-21-2012, 07:34 PM   #58
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Just think of it this way. Next time you fire it up it will be a whole new animal. Good luck man.
dreamstang is offline   Reply With Quote
Old 05-21-2012, 07:35 PM   #59
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Thanks
JayKranz is offline   Reply With Quote
Old 05-21-2012, 07:36 PM   #60
Registered Member
Regular
 
McNassty's Avatar
 
Join Date: Jul 2011
Posts: 600
If you check St. Louis Craigslist a guy had like eight brand new 5.0's for like $800 apiece
McNassty is offline   Reply With Quote
Old 05-21-2012, 08:01 PM   #61
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
I just checked CL St Louis and I can't find them. Maybe they are gone.
JayKranz is offline   Reply With Quote
Old 05-21-2012, 08:55 PM   #62
Registered Member
Regular
 
McNassty's Avatar
 
Join Date: Jul 2011
Posts: 600
I'll check and see if I can find a link

---------- Post added at 01:55 AM ---------- Previous post was at 01:50 AM ----------

I found them, sorry they are for $1200 apiece. If your still interested look up '1995 Ford Mustang' they are new short blocks not refurbished
McNassty is offline   Reply With Quote
Old 05-21-2012, 09:10 PM   #63
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
cool thanks
JayKranz is offline   Reply With Quote
Old 05-21-2012, 09:59 PM   #65
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Thanks TH I'll look through these.
JayKranz is offline   Reply With Quote
Old 05-22-2012, 06:54 AM   #66
Forum Car Trader
Regular
 
90GTNovi2000's Avatar
 
Join Date: Apr 2012
Region: Texas
Posts: 1,150
The fresh built 302 is the way to go since he was building it for boost
__________________
90GTNovi2000 is offline   Reply With Quote
Old 05-23-2012, 06:19 PM   #67
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
So just for the heck of it I did a compression test and guess what, it's perfect! Back to the drawing board. I think that the evidence proves the engine isn't bad but I can't figure out what is bad.
JayKranz is offline   Reply With Quote
Old 05-23-2012, 06:22 PM   #68
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
not neccasarily. if it was something like a piston skirt or wrist pin. you would probably still have good compression, that is till it actually broke all the way.

i would see if you could find a mechanics stethoscope. it works great for pin pointing noises. i use mine all the time.
dreamstang is offline   Reply With Quote
Old 05-23-2012, 06:23 PM   #69
Road Trip!
 
Join Date: Jan 2012
Region: Illinois
Posts: 776
Olay will do, this is just weird cuz I have no smoke, the car idols and runs fine and I have great oil pressure
JayKranz is offline   Reply With Quote
Old 05-23-2012, 06:24 PM   #70
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: 91 5.0 Knocking sound

Quote:
Originally Posted by JayKranz View Post
So just for the heck of it I did a compression test and guess what, it's perfect! Back to the drawing board. I think that the evidence proves the engine isn't bad but I can't figure out what is bad.
It may have spun a rod bearing. If it did and stacked them or chewed one up though I would have thought you could see some metal flakes in the oil by now.


I don't suppose you cracked a flywheel or the harmonic balancer?
Trojan Horse is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

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 Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



08:46 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.