We got the old 1.25" plug out but we're having problems getting the new one in. There just isn't enough room to swing a hammer and hit it straight. Just wondering if my idea of using a short bottle jack and push it in using the frame as a base might work? Or would a palm hammer work? I've attached a picture if that helps.

 

Whatever works... That engine would be so much easier to work on if it were cleaned up.

 

We're going to take the hose to it soon. But want to plug all the holes first.

 

No matter what method is used to drive it in place, put it in the freezer overnight and don't take it out until the last second before installation.

Good luck!!!

 

If you pull the wheel off, it might give you a different angle to work with.

 

X2 freezing the plug does shrink it just a tiny bit and it help with the install.

 

I'd freeze the plug & use a pneumatic hammer with flat hammer head attachment bit.

 

If your going to havethe motor rebuilt, imo just pull it and start working on the rest of the car. I know you next year n we want to this run but chances are that cars been off the road forthis long for a reason.

 

You can use OTC 4603. Frost plug installation tool.

 

Michele,
As much as I hate to recommend it, you will probably be better off going to the parts store and buying one of the expandable rubber plugs. The picture is just for reference, probably not the size you need.

https://shop.advanceautoparts.com/p/...608/89014938-P

For what you are trying to accomplish it will work fine and not much chance it will leak. And very easy to install

 

That might just do the trick. Since we will be pulling the engine next spring and just need to get it running so it can move under its own power for short (in the driveway) distances.

 

So we found a 1.25" rubber expansion plug and it worked! But of course like many said if one is rotten the rest probably are also. Well the frost plug at the back on the same side started dripping. Turns out there what just so much gunk the it plugged the hole, until the larger hole was plugged. So we are on to plan "B", which is we are pulling the engine.

 

Be careful, you are well on your way to falling into the MAW hole. (Might As Well) -- since we have the engine out to replace the freeze plugs, we might as well replace the timing chain, do a valve job, replace the carb, on & on.... This is how it starts... My advice, if I may, make sure the car is worth the amount of $$ you will need to put in it. We all love Oldsmobiles and want to see them fixed up, but if this car is a rusty beast.. be advised fixing the engine is a small cost compared to body work/ rust repair... So keep that in mind .

 

maybe look around on KIJI facebook or CL for an engine,

A while back a member located a never installed rebuilt engine and trans within driving distance that sold for about 1/2 the cost of a basic engine rebuild. Running examples can be had as well just be sure to do some basic checks on the engine for soundness.