Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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  
Old 02-13-2012, 05:34 PM
Va_Cleaner Va_Cleaner is offline
New User
 
Join Date: Feb 2012
Location: Gloucester, Virginia
Posts: 7
Va_Cleaner is starting off with a positive reputation.
1981 F-100 300ci Inline 6 HELP PLEASE?

Hello all and thanks for the wonderful advise I have read so far in these forums the past couple of days, it has really helped my decision on purchasing this truck but now I have came back to ask a few questions of my own. Truck is a 1981 F100 Custom with a 300ci Inline 6. The first problem that I noticed was there is a white/tan colored foam on the dipstick and under the oil filler cap, from what I have read this can be caused by condensation, if it was condensation would there be a small amount floating in the oil under the filler cap? ANother concern was during the test drive I heard the hissing noise coming from the engine....Maybe the vacuum lines? Is there a diagram or picture that shoes where all the hoses/lines connect in the engine compartment? And the final issue is when you come to a stoplight the truck idles rough (up and down RPM's) Could this be caused from the vacuum lines? When it is in park it idles fine. Thanks for any advise that can be given..
Reply With Quote
  #2  
Old 02-13-2012, 05:54 PM
ctubutis's Avatar
ctubutis ctubutis is offline
Moderator
 
Join Date: Nov 2007
Location: Denver Metro Area, CO
Posts: 15,407
ctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputation
ctubutis ctubutis ctubutis
Oy.....

First off, welcome to FTE.

I hope you didn't pay a lot for this thing and I don't want to sound all doom-and-gloom but my first thoughts are to get your money back (I think you have 3 days legally).

Water in the oil concerns me, and a "hissing noise" combined with water in the oil makes me shudder.

A leak-down test will tell you if you have a blown head gasket.

Condensation will evaporate pretty quickly as it's just water, but oil is lighter than both anti freeze & water and will float on top.

At a minimum, drain your oil and see what comes out..............
__________________
About the bra
Microsoft is writing software for the kind of people who'd type google into the google search bar to get to google.
http://news.slashdot.org/comments.pl...7&cid=47003415
Reply With Quote
  #3  
Old 02-13-2012, 06:06 PM
Va_Cleaner Va_Cleaner is offline
New User
 
Join Date: Feb 2012
Location: Gloucester, Virginia
Posts: 7
Va_Cleaner is starting off with a positive reputation.
Well, I guess I explained that a little wrong. It is more of a foamy substance than "water" floating in the oil. I noticed that there are a few hoses that are not connected as well. I will shot some pics tommorrow and post them. Thanks for the help. how do you post a pic?
Reply With Quote
  #4  
Old 02-13-2012, 06:16 PM
ctubutis's Avatar
ctubutis ctubutis is offline
Moderator
 
Join Date: Nov 2007
Location: Denver Metro Area, CO
Posts: 15,407
ctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputation
ctubutis ctubutis ctubutis
Upload your pictures to a photo hosting service such as flickr, photobucket, even FTE Albums & Galleries will work. Then, use the IMG code to include your pictures inline in your posts.

User Gallery & Picture Display Help - Ford Truck Enthusiasts Forums

One of the guys in the Diesel forums made a video explaining a photobucket method:

http://www.ford-trucks.com/forums/11...he-forums.html



Still, drain your oil and see what comes out....
__________________
About the bra
Microsoft is writing software for the kind of people who'd type google into the google search bar to get to google.
http://news.slashdot.org/comments.pl...7&cid=47003415
Reply With Quote
  #5  
Old 02-13-2012, 06:24 PM
Dave804's Avatar
Dave804 Dave804 is offline
Postmaster
 
Join Date: Jan 2012
Location: Richmond
Posts: 3,462
Dave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to behold
Damn. Typed a couple hundred words and C. beat me to part of it. College internet is terrible.

Anyway, sounds like HGs. You could have a bad filter gasket, bad repairs, and an engine that sat and got moist. But, odds aren't in your favor. Google bad HG. To me looks like the bottom of a milkshake or sundae. Hoses should be easy to hook back up based on diameter and length. That will cause the bad idle.

Once it's buttoned up get a can of brake cleaner or starting fluid. Spray around gaskets and hoses. Anywhere that's leaking will cause a change in exhaust color or the idle to pick up. Change the oil stat and see if it gets that way again. What's your coolant look like? Does the expansion tank or radiator hold pressure long after you quit running it?
__________________
Dave- if it's old, slow, & free it's mine.

Old Traveler-86 F250HD, RC-LWB. 2WD. 300/NP435/4.10 Sterling. 96k mi-

1987 Colony Park. 131k. 302, AOD with werewolf sounds, 3.08 rear.
Reply With Quote
  #6  
Old 02-14-2012, 07:53 AM
Va_Cleaner Va_Cleaner is offline
New User
 
Join Date: Feb 2012
Location: Gloucester, Virginia
Posts: 7
Va_Cleaner is starting off with a positive reputation.
Ok, I went out this morning and drained the oil, and it looks as good as new. I assume that is a good sign? I was also told last night to make sure the PCV Valve and the hose running from the PCV valve were clear of any carbon buildup. That person also commented and said something about removing the PCV valve while the truck is running and you should be able to tell if it is bad from the way it would idle....I did not quite understand this procedure. I am going to try an shoot some pics today (if it clear up outside) and post them for the further more in depth questions that I have..thanks for the help so far....CTubutis...You almost bursted my excitement bubble last night!
Reply With Quote
  #7  
Old 02-14-2012, 10:32 AM
ctubutis's Avatar
ctubutis ctubutis is offline
Moderator
 
Join Date: Nov 2007
Location: Denver Metro Area, CO
Posts: 15,407
ctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputation
ctubutis ctubutis ctubutis
Quote:
Originally Posted by Va_Cleaner View Post
Ok, I went out this morning and drained the oil, and it looks as good as new. I assume that is a good sign?
It could be (a good sign) but it could also be an effort by the PO at hiding a problem, just like new tires will mask a front end problem for a while.

It still concerns me, though, and I'd do a leak-down test and look for air bubbles in the radiator. Again, water will sink, oil will float.

Have you looked at your radiator fluid at all?

Quote:
Originally Posted by Va_Cleaner View Post
CTubutis...You almost bursted my excitement bubble last night!
Believe me, dude, there's not much happiness on this side... Here's a newbie who has apparently been lurking for a while and used what he learned here to go purchase something of his own (great!) but sounds like it might need some semi-major engine work (ugh).

Speaking of which, go HERE and finish filling out your profile so we can see where you're from when you post?
__________________
About the bra
Microsoft is writing software for the kind of people who'd type google into the google search bar to get to google.
http://news.slashdot.org/comments.pl...7&cid=47003415
Reply With Quote
  #8  
Old 02-14-2012, 10:55 AM
lavatan's Avatar
lavatan lavatan is offline
Elder User
 
Join Date: Oct 2010
Location: Rock Valley, IA
Posts: 941
lavatan is gaining momentum as a positive member of FTE.lavatan is gaining momentum as a positive member of FTE.
If it is your head gasket, you may not be too bad off (yet). Has your temperature spiked at any time while driving it?

I would say, if in question, replace the head gasket. It will save you some (or a lot) of work later rather than a short amount of time and money now.
__________________

Jeremy
1985 F350 Crew Cab, 460ci bored over .030
Dual energy 255DEH COMP Cams cam shaft with matching springs and lifters (Part 34-223-4)
Borg Warner T-18 transmission 3-speed with granny gear
Edelbrock Performer 1406
Reply With Quote
  #9  
Old 02-14-2012, 02:30 PM
DillonZ81ford DillonZ81ford is offline
Junior User
 
Join Date: Feb 2010
Location: Southeast Alaska
Posts: 81
DillonZ81ford is starting off with a positive reputation.
sounds like vacum leaks, i have this exact same engine only in a 150, when i went to replace a valve cover gasket it was coated in a penut butter colored cream, wet old oil, change the oil a few times clean as much as you can, and plug the vacum lines that are not conected, these engines are bullet proof, i dont think you have to many "major" problems, vacum leaks on these engines are the worst, especially with all the polution control stuff on our year of trucks, i pulled the egr valve off of mine and plugged i swear 100 hoses runs like a top, just get the hoses plugged and i bet it will run beter
Reply With Quote
  #10  
Old 02-14-2012, 02:45 PM
Dave804's Avatar
Dave804 Dave804 is offline
Postmaster
 
Join Date: Jan 2012
Location: Richmond
Posts: 3,462
Dave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to beholdDave804 is a splendid one to behold
Quote:
Originally Posted by lavatan View Post
If it is your head gasket, you may not be too bad off (yet). Has your temperature spiked at any time while driving it?

I would say, if in question, replace the head gasket. It will save you some (or a lot) of work later rather than a short amount of time and money now.
Plus you'll see a lot more about the condition of the engine. Have access to any inconveniently placed stuff, and get to check other hoses, etc. for leaks.

From what I see, it's not back on these 300's. I've done HG's that took two full days and almost 1k in parts. Everything you need should be in stock locally. Pick up a 6pack, and another in case it's bad news, and go exploring.
__________________
Dave- if it's old, slow, & free it's mine.

Old Traveler-86 F250HD, RC-LWB. 2WD. 300/NP435/4.10 Sterling. 96k mi-

1987 Colony Park. 131k. 302, AOD with werewolf sounds, 3.08 rear.
Reply With Quote
  #11  
Old 02-15-2012, 04:33 PM
Va_Cleaner Va_Cleaner is offline
New User
 
Join Date: Feb 2012
Location: Gloucester, Virginia
Posts: 7
Va_Cleaner is starting off with a positive reputation.
Wow, after a long 36 hours I have fixed the problem and she is running as smooth as a baby's a$$. To start things off, I spoke with a few people at Advance and they all recommened a bottle of Seafoam..through half that in with the oil and after running it for a while the mositure and "foam" was gone. Then my long time friend/mechanic came over and we replaced the carb (Reman OEM), Radiator & hoses, Heater core, Complete engine flush, transmission flush, replaced all fluids, plugs, wires, d.cap, oil filter, PCV valve, front tie rods and ends, and new front tires. Well needless to say she's running just like I though...excellent!! Now were having a few beers, going to sleep and going for a ride tommorrow. Heres some pics I shot a few mins ago, Thanks

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
Reply With Quote
  #12  
Old 02-15-2012, 06:43 PM
billt28's Avatar
billt28 billt28 is offline
Posting Guru
 
Join Date: Jan 2011
Location: West Valley City
Posts: 1,461
billt28 is gaining momentum as a positive member of FTE.billt28 is gaining momentum as a positive member of FTE.
Congrats Va. Glad to hear you got her running great.
__________________
'03 F-250 SD. 82K, 6 speed trans, the tires are going soon.
Reply With Quote
  #13  
Old 02-16-2012, 07:45 AM
Grubbworm's Avatar
Grubbworm Grubbworm is offline
Postmaster
 
Join Date: Apr 2010
Location: Acworth, GA
Posts: 2,935
Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.Grubbworm has a great reputation on FTE.
theGrubbworms JoEllen Grubbs
Awesome, glad to hear you've fixed your problems and made it a reliable ride now. And welcome to the forum.
__________________
Dave's
1985 Ford F-150 4x2 (pictures),
4.9L 300 I6 / TOD 4spd / 8.8-3.08
Troubleshooting help, for anyone that needs it.
Reward good advice with a note by clicking the left red "Add to Reputation"
button right of the word "permalink" top right of the poster's message.
Reply With Quote
  #14  
Old 02-16-2012, 08:18 AM
Dave83 Dave83 is offline
Freshman User
 
Join Date: Apr 2010
Location: Jacksonville, Fl.
Posts: 45
Dave83 is starting off with a positive reputation.
What is that hose on top of your carb? The one on the side that goes straight down. My carb is capped off there. Thanks to the PO, my engine is a cluster @#&$! He hacked all the emissions and hoses and i'm trying to find a how to on hooking all those vac lines back to factory specs for dummies. Im not an engineer and don't really understand the vac diagram on the hood lol.
Reply With Quote
  #15  
Old 02-16-2012, 09:39 AM
f100beatertruck's Avatar
f100beatertruck f100beatertruck is offline
Posting Guru
 
Join Date: Apr 2003
Location: Parkesburg PA
Posts: 1,991
f100beatertruck has a very good reputation on FTE.f100beatertruck has a very good reputation on FTE.f100beatertruck has a very good reputation on FTE.
cobra2411
The guy that owned that truck must have owned my 87 at one point because my engine is the exact same color...
__________________
David
-= 86 F250 HD Super Cab, 4x4 351/C6 & 86 F250 HD Super Cab, 4x4 351/T18 =-
-= 05 Mustang GT 13.53@103.6 & 93 Mustang Cobra 14.21@99.8 = -
-= 89 Bronco 302/AOD, 87 F250LD 351/C6, 86 F150 302/AOD =-
Reply With Quote
Old 02-16-2012, 09:39 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks

Tags
100, 1981, 300, 300ci, ci, f100, ford, gasket, head, inline, oil, remove, specs, t170fs, tremec, truck, water

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 07:26 AM.


Powered by vBulletin® Version 3.8.7 AC1
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