86 Scottsdale w/ a 305 small block

[okas271129]

Restoring this 86 scottdale that has a 305 small block. I've gave it a tune up after it has been parked for 9yrs. Looking to start it up this weekend ..but I noticed there a hose missing from the radiator I have the upper and lower hose and one to the heater core what's the fourth for??? Any advice with help oit thanks

[zieg85]

The 4th is a little hose to the overflow tank

[okas271129]

Thanks.. another ?? Can you tell me what the rear gear ratio the scottsdale came with on a auto trans

[zieg85]

Look in the glove box for the RPO codes.  Most likely it is a 2.73 but it could be a 3.08 or 3.42.  The sticker may say standard ratio but give us the code and I can tell you what that is assuming it is still original

[okas271129]

Thing is the previous owner had tried to convert it to a manuel trans and didn't match the rear ratio to the front and blew it out . Want to get it back to automatic

[zieg85]

You really need to pull the diff covers and see what you have then

[Irish_Alley]

well changing to a manual has nothing to do with the rears. so he might of just blew the front wheelin or changed the rear and blew like you said. but either way take the covers off and verify and inspect the condition of what you have you might have to go to a junkyard and buy a used set

[okas271129]

Another question for yall.... Im just about ready to start this engine that's been sitting for 9yrs.. I've bought a battery, plugs, plug wires, thermostat/ gasket , radiator hoses, coolant, oil/oil filter, and new belts. I also got marvel mystery oil to put in each plug hole to loosen up the pistons.. any further advice or suggestions will help out a lot... I'm planing on trying it this weekend. Also I've dropped the gas tank and plan on feeding it manually through the carb just to get it started.. any tips or advice on that would help to... thanks

[Irish_Alley]

could remove the distributor and prime the oil pump, oh and change the oil

[rich weyand]

Pull all the plugs and turn the engine by hand with the fan belt to make sure the rotating assembly is free before you have the starter engage it under power so you don't dynamite the starter or the ring gear.  If it won't rotate, you might need to let that oil sit in there for a bit, or better yet for the first start use something a little more penetrating, like WD-40 or Silikroil (my choice) until you have the rotating assembly freed up.

Once you are sure the rotating assembly is freed up, still with the plugs out, I would turn it over with the starter for 10 seconds at a time, maybe three times with a couple minutes in between for the starter to cool down.

THEN put the plugs in and try it.

If you want it to idle for a while, without the tank on it, you can hook about 4 feet of fuel line from the carb to a funnel, and put gas in the funnel.  Hold it up as high as you can to get some fuel pressure into the carb.  Maybe you can nail the funnel to a rafter in the garage.  You can add fuel to the funnel to keep it from running dry while you let it idle.

BTDT.  All of the above.

[okas271129]

Rich... now the fuel line for the funnel do I run it where the inlet line is . Or direct to the throat to the carb. And by ur method of bumping the starter is it kinda like missing the whole oil pump priming

[rich weyand]

The funnel connects to the fuel inlet on the carb.

The point of turning the engine by hand is to make sure it isn't seized.  The point of cranking it (not bumping it) on the starter with the plugs out is to get the oil system running, wipe the bores clean a bit, exercise the valves a bit.  Just get things moving around in there before you apply power.  Also good for listening for noises that don't belong.

[Fairlane514]

Do not run the motor while pouring gas into the carb.....(it kinda sounds like what you are describing)  Run a rubber hose from your gas can to the inlet on the fuel pump.

[rich weyand]

Do not run the motor while pouring gas into the carb.....(it kinda sounds like what you are describing)  Run a rubber hose from your gas can to the inlet on the fuel pump.

That works, too.  Running the hose from the can or funnel into the fuel pump inlet has the advantage of getting better fuel pressure at the carb.  You can also run it directly into the fuel inlet on the carb, which is one way to get a car home when the fuel pump dies.  BTDT.  Your passenger does look kind of strange holding the can up in the air outside the passenger window with the hose leading under the hood, but it works.

[Irish_Alley]

one back fire and you got a nice little fire going