Engine is hard to start up and run?

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test the ASD and Fuel pump relay see below.

Double check battery connections make sure its clean and tight.

If both relays checks out could be coming from the computer pin#51. ASD relay control circuit.


https://www.2carpros.com/forum/automotive_pictures/12900_ASD_relay_1.jpg




https://www.2carpros.com/forum/automotive_pictures/12900_asd_pin_outs_1.jpg

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Thursday, January 7th, 2021 AT 4:16 PM (Merged)
Tiny
VIGILAW
  • MEMBER
  • 2 POSTS
  • 1989 DODGE TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
We have received a RV with a dodge truck front, which has 440 V8 Engine.

Problem: The RV has not been run in over ten years, and has been in the back of my wife's father house. It' just been in the backyard all this time.

We had it pulled to our house, and I have done some work on the RV part of it.

Question: How do I turn over manually, or initially start this V8 motor, which has not been running in 10 years or so, "without hurting the internal parts, and causing some damage".

I've been told not to do a "hard start" of the vehicle.

What steps should I intially take, before attempting to start the engine after all of this time?

Tony
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Thursday, January 7th, 2021 AT 4:16 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
The biggest problem will probably be that the piston rings are rusted to the cylinder walls. Pull the plugs and spray in a lot of a good penetrating oil like PB Blaster, let it sit for a day and spray in some more. Definitely pull the distributor and spin the oil pump to lube the motor! If the engine turns with the starter then spin it for 30 seconds to blow out the oil before replacing the plugs. Change the points and condenser and cap and rotor if they look bad. Don't change the oil until it has run because it will be contaminated with the penetrating oil. This truck is pretty old but if you can get it to spin than you can get it to run! It will need a big tune up -new coil, plug wires, etc. Good luck! Don't forget to drain the old gasoline and put in some new gas and some dri gas to remove the moisture that has condensed in that vented tank for 10 years.
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Thursday, January 7th, 2021 AT 4:16 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

Pull the spark plugs out and add a solution of diesel & 10 weight oil to each cylinder add about 100ml give or take and let sit for a day or so to soak in behind the rings, then drain the oil and change the filter, add engine oil and pre fill the filter with as much oil as you can, with the plugs still out turn the engine over by hand a few revolutions, if engine turns freely, place rags over the plug holes(remember that is oil in them still) and crank over for a few sec, let start rest and repeat, do this a few times, that will get oil in behind the rings and help unstick any, if they are to tight they will break on start up, drain fuel and change filter, fit plugs and try a start, do not worry about any smoke as it will be smokey for a while, hopefully this will minimise any potential ring damage due to sitting for so long.

Mark (mhpautos)
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Thursday, January 7th, 2021 AT 4:16 PM (Merged)
Tiny
VIGILAW
  • MEMBER
  • 2 POSTS
I agree about what has been said, and also to drain the old possibly "gummy gas" in the gas tank!

One of you guys said to crank or turn the engine over manually? How do I do this? Do I put it in "neutral", and then put a wrench on the nut holding the fan belt. What I am saying is this. On Model T's, they had a hand crank that was placed and connected to the crank, just as on old propeller planes, to get them started.

I would like to crank the engine over, "manually", but this RV truck (440 V8 engine) is a "automatic transmission".

I also don't understand why I have to pull out the "distributor from it's shaft", that doesn't make sense to me. Please respond.

T.
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Thursday, January 7th, 2021 AT 4:16 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
With the spark plugs out, the engine will (or should ) turn over by hand (socket on crankshaft pulley bolt) fairly easily. The problem with hitting the starter even if oil has been added to the bores is that if a ring is stuck the sudden shock of the starter cranking it over may crack a ring, rocking and turning slowly by hand is the best way to break any seal between rings and bore with out doing any damage, the other mod is suggesting that the oil pump is driven by the lower section of the distributor, you can remove the distributor and with a large screwdriver blade fitted to a variable speed drill, you may be able to drive the oil pump manually and build up oil pressure before any start up,

Mark (mhpautos)
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Thursday, January 7th, 2021 AT 4:16 PM (Merged)
Tiny
PRYDENPHALL
  • MEMBER
  • 2 POSTS
  • 1977 DODGE TRUCK
I have replaced the starter, brain, coil x2, alternator, battery cables, new filters, (fuel and oi)l, radiator (due to a pin hole leak) distributor cap, thermostat, valve cover and oil pan gaskets, had the timing adjusted, and increased the idle slightly, remounted the coil to the firewall, (was mounted to the engine) and all spark plug wires. I have also had to wire a push button start, due to a loose ignition switch in the column. The problem is the truck turns over, but it doesn't always start, sometimes it rolls and fires right away, but half the time it refuses to start until I open the hood, and bridge the starter with a wrench, and give it a little starter fluid through the air filter or to the carb. Once its running it goes like a champ. It always starts -eventually-, sometimes it just takes a while. A secondary problem, the engine has a click that comes and goes, louder when it first starts, and then goes away, and comes back randomly as the truck is run. I will be replacing the spark plugs, and doing a compression test, though from a visual inspection the plugs are clean. Any help would be appreciated.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
PRYDENPHALL
  • MEMBER
  • 2 POSTS
Fixed the starting issue, by bypassing the ignition switch, and creating basically, a controlled hot-wire, with toggle switches, but now the alternator is pumping out too much voltage, melting the volt-meter and nearly causing a fire. Help would be appreciated.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
JAYEDWARD
  • MEMBER
  • 1 POST
  • 1975 DODGE TRUCK
  • V8
  • 2WD
  • MANUAL
  • 100,000 MILES
Engine starts right up when engine is cold. But when it's been run awhile and then shut off, it won't start again sometimes until it's cooled down.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
What is the symtom? Slow crank? Or no crank?
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
TH4RGOR
  • MEMBER
  • 4 POSTS
I have a 1975 dodge tradesman van. It will start no problem in the morning and run but as soon as its turned off after about an hour of running it will start again but only for a minute or so and then it will cut out and not start again untill its cold. Ive replaced the plugs, plug wires, dist cap, dist rotor and air filter. Im not sure if its the choke not coming off properly and flooding the engine? I will try and disconnect it today. But I ckecked last night when it cut out and I was not getting a spark from the plugs so im not sure if its something to do with the wirinmg or the distributor. Any ideas? Thanks.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Sounds like the ignition module.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
TH4RGOR
  • MEMBER
  • 4 POSTS
After I sent the last msg I was able to try a different module that was given to me be a friend. As soon as this was fitted the van would not start at all. So thinking this to be the problem I went and bought a new module.I also bought some wire connectors as there is a wire that runs from the battery to a bolt in the bodywork under the hood (the earth?) That has a connector joining it but it has come loose. I put a new connector on this wire and thought I would test the engine before I put the new module on. The engine would not start. I disconnected the connector tried again and the engine started, I left the engine running and reconnected the wire the engine continued to run? The wiring is a bit of a state, there are wires running everywhere. In doing all this ive now lost the horn and the interior lights? Do you think I have a bad earth or do you think I still need the module replacing. Also if you change the manifold on the right hand bank should I get coolant coming out from the bolt nearest the rear of the engine? Ive heard somewhere that some bolts on 318's pass through water jackets. Thanks for your help.
Steven
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Water runs thru all intake manifolds, there are seals, and RTV is used at the corners. If your wires are that bad thats the first item to be repaired. I assume this is on the negative cable? If it's the positive, don't ground it, it should be going to the starter solinoid, or possibly a fuse link. If the manifold leaks, you will have to remove iit and re gasket and re seal it. Severe vacuum leaks can make for a hard starting condition!
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
TH4RGOR
  • MEMBER
  • 4 POSTS
Sorry should have been more clear in my description. Im talking about the exhaust manifold not the inlet. The bolt on the right hand side nearest the back of the engine leaks anti freeze when removed. I think this is because it passes through a water jacket. I was just checking as when I first took this off I thought that the block had been cracked in some way but after checking on the internet I think this is normal. We blew the gasket on the exhaust manifold but have a new one fitted now and the engine is running fine for the minute. Not fitted new module yet and still have no interior lights or horn. Just waiting for the next time it cuts out and will fit new module to see if this cures the problem. When it comes to finding a wiring fault im a bit clueless as to where to start.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
TH4RGOR
  • MEMBER
  • 4 POSTS
Yes the wire going to ground is the negative. The positive goes to what I think is a fuse link (small black box, loads of wires, some going through to the dash, some going to the ignition module, some going off into the engine. Any suggestions for a good place to start to find a wiring fault would be really appreciated thanks for your help.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
The black box is the power distribution center, open it up and see if any of you large fuses are burnt.
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Thursday, January 7th, 2021 AT 4:17 PM (Merged)

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