Big help needed
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Freshman User
Joined: Jul 2007
Posts: 29
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Big help needed
Well i took off the valve cover to my 77 F100 the other day to change the gasket and found a cruddy caked on black sut on the springs. I also ran my finger down around the bottom of the head(around the springs) and i get what feels almost like sand. Some1 suggested for me to get a good engine flush but i was always told never to use them. I did use a shop vac and got rid of the black tar, but it still has that gritty feel to it. What should i do??? The truck also wont stay running by itself (idle) you have to keep giving it gas, is this the timing or the carb settings?
Alos something cool i thought i would share is the Actual miles on my truck are 43,000 A Miles. First engine too
Alos something cool i thought i would share is the Actual miles on my truck are 43,000 A Miles. First engine too
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
I think it takes many many miles to create this type of sludge build up. Heak even an engine that never had the oil changed would not have enough sludge built up to require a shop vac to clean up. Might consider this engine has more miles than you were led to believe.
Anyway the grit is a combination of dirt and perhaps some carbon that is present in the oil. Yet another indication that this engine has seen a few more mile markers than I believe you are aware of.
Does it smoke? Other than poor idle how well does it run?
You symptoms of poor idle could be either the timing or the carb adjustment. A turn of the idle screw might be all it needs.
By all means change the oil, maybe a couple of times over the next couple of thousand miles. Doubt it will clear up the sludge, but it might get most of the sandy debris out of there.
Change the air filter too. Sounds like it might have been left unatended over the years, and allowed some dirt to get past.
Anyway the grit is a combination of dirt and perhaps some carbon that is present in the oil. Yet another indication that this engine has seen a few more mile markers than I believe you are aware of.
Does it smoke? Other than poor idle how well does it run?
You symptoms of poor idle could be either the timing or the carb adjustment. A turn of the idle screw might be all it needs.
By all means change the oil, maybe a couple of times over the next couple of thousand miles. Doubt it will clear up the sludge, but it might get most of the sandy debris out of there.
Change the air filter too. Sounds like it might have been left unatended over the years, and allowed some dirt to get past.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Change the oil and put some ( Pint) Transmission fluid in the oil and run it for a week.
Change the oil and filter.
do it again for 2 weeks.
change the oil and filter again and use just motor oil.
Please put the topic in the title.
Your need to make all the adjustments to your carb
Change the oil and filter.
do it again for 2 weeks.
change the oil and filter again and use just motor oil.
Please put the topic in the title.
Your need to make all the adjustments to your carb
Postmaster
Joined: Aug 2000
Posts: 3,312
Likes: 1
From: Eldorado Ca. USA
If you want instant gratification, and have the time to let it sit, pop the plug on the pan, drain the oil, and leave plug off. Into a separate drain pan blast everything with the solvent of your choice. I would use something that will evaporate fast, so you don't have to wait very long before you put in new oil. Before you add new oil, and run it, keep flushing the oil pan out with clean solvent till there is no more junk comin out of the pan. Put the plug back on, put in a quart of CHEAP oil or ATF, and drain it. Then add your new oil and go from there. I would venture a guess that your intake valley will be full of crud too., so a flush, with a long road trip, with alot of oil changes will be needed to clean it (or just pop the intake off to install an aluminum one )
If you are lazy like I am, I would do the intake and top of the heads at once, with some castrol super clean and a light duty pressure washer. You gotta get the remaining water out of the oil pan, so add a quart of oil or ATFl, the water will join itself at the bottom of the pan, drain, fill with cheap fresh oil, warm the truck up, dump it, new oil+filter, call it done.
If you are lazy like I am, I would do the intake and top of the heads at once, with some castrol super clean and a light duty pressure washer. You gotta get the remaining water out of the oil pan, so add a quart of oil or ATFl, the water will join itself at the bottom of the pan, drain, fill with cheap fresh oil, warm the truck up, dump it, new oil+filter, call it done.
