Sunday, October 31, 2010

Start'M Up Done... sorta

I had ordered custom battery cables to replace the single positive line that now needed to be split in two. But I didn't realize that it was going to take several weeks to get them made up! So since I want to do other things with the car, I just cut the existing one and soldered new terminals on as a temporary arrangement til the new cables arrive. So the whole setup is in place now and right away I used it to readjust the valves. It worked great being able to easily hook up my remote switch and bump the engine to get each valve positioned.

After adjusting the valves I started her up. Seems like it does spin the starter a tad faster too. I have a lifter that seems a bit sticky... clatters a bit then quiets down, then may clatter a bit more and quiet again. I am ready to change the oil now but need to get some Lucas to put in there first. I have oil and filter, just need the Lucas.

Monday, October 25, 2010

Start'M Up Continues

I pulled the wires off the starter and measured for replacement positive cable. Ordered them online. The big fat yellow wire is now shortened and connected to the hot side of the fender solenoid. The purple wire is connected to the "S" terminal to start. Black ballast bypass wire is removed at the terminal block.

Saturday, October 23, 2010

Ponderings...

Thought I had the valves adjusted... put the covers on today and fired her up only to be met with noise, rough running and... smoke out the exhaust. Maybe my valve seal job just didn't do the trick. But in any case, seems I need to do some more work on adjusting valves. It shouldn't be this hard! The manual says to tighten till no lateral movement without collapsing the lifter's hydraulic range. Then turn one more full turn. Of course, I didn't do it that way because the crank has to be turned to set each pair of valves to be fully closed and turning the crank is a bitch with the limited room in front. (Is that a lame excuse or what?)

One thing that will help with turning the engine is to use a remote bump switch. And one thing that will make that easier to use is to get my "Start'M Up" kit fully installed. (Started this when I pulled the old voltage regulator as a part of upgrading the generator to an alternator.) I need to pull the positive battery cable and measure for a new one in order to finish that job, so I think I will stop with the valves and turn to that before I go back to valve adjusting.



MAD Electric and Painless both make these kits and you can come up with your own by using a Ford starter solenoid and some wiring supplies. Kit contents (MAD) and wiring concept (Painless) shown above. Car Craft has a good article that includes this kit. 

Long-term thoughts though... if the engine smoking is really not solved (meaning there isn't just residual oil burning off), then I think the next plan is to invest in a few bottles of Lucas to control the oil. Supposedly this is a low-mileage engine and I think I have seen enough evidence to believe it. So I do not want to invest in an overhaul! I can't see spending $4K on an engine that is supposed to be only 27K miles.

Which brings me to another thought... if I do need to invest in an engine, considering that these cars are meant to be drivers, not show cars, what I would really want to do is put a crate engine in instead of a rebuild of the original. Of course, that means dealing with the transmission too. Adapter kit or replace with whatever bolts up natively. And if it's "replace", then one has to deal with drive-shaft and third member. Ugh.


I got a nice response from a Pontiac friend on the Pontiac '50 mailing list:

I put a 350/TH350 in my 1950 Pontiac.  I had never done an engine swap before.  I did a lot of reading and research before doing so to make sure I was doing it right.  I had heard of poor swaps if all was not well aligned. I don't think it was all that difficult, but there were several things to consider as far as proper alignment with the rear end etc.  It would also depend on how comfortable you are with doing the work yourself .....and...... how patient you are. After doing it myself on my 50 Pontiac I think it would go faster and easier the second time, because I was learning as I went.  I personally would recommend doing it.  It doesn't take much to make your own motor and transmission mounts if you have much mechanical sense and can take accurate measurements. The main things to keep in mind are: 1) keeping the rear end input shaft and the transmission tail shaft at the proper angle to each other. those angles/lines must be parallel  2) carburetor mounting surface level at ride height.  3) Also remember that most engines were offset to the passenger side about 1/2" from center.   Once I figured out how to do those,  the rest was pretty simple. ...just time consuming to get the parts and hook everything else up. But, I think it was worth the time and effort.
Good luck.
Bill
Nice!

Sunday, October 17, 2010

Valve Cover Gaskets

So I cleaned off the (not so) old cork valve cover gaskets today and found that they had been attached via weatherstrip adhesive to the covers. At first I though this was an idiotic way to attach the gaskets, but the further I got in cleaning them off, the more I realized this was actually a pretty good way! I had purchased rubber gaskets so it seemed it might be even better with those. I used the Dremel to get the cover seal surface nice and clean, then smeared with my "elephant snot" 3M Weatherstrip Adhesive and presto! The gaskets are not going anywhere! Ran out of time so will have to finish next weekend.

Saturday, October 16, 2010

Valve Adjustment

Put the plugs back in and wires on so I could start the engine and tighten up the valves. Lots of clattering when she first started! Had her quieted down pretty quickly but not I've got oil all over the place. I used some brake cleaner to get some of it but I'll have to go get some Gunk® tomorrow after I get the valve covers back on.

Sunday, October 10, 2010

Valve Seal Progress

At last all 16 valves have new umbrella seals installed. It took about 6 hours but I had the valve covers off and everything ready to go from a few weeks ago. All of the intake valves with their factory shields were real buggers to get the springs off of because the shield interfered with the hooks on the spring compressor. I think one shield survived undamaged, but since I am not re-using them, it doesn't really matter. I was hoping to be able to save them and maybe offer them to someone who might want to use them. The only way to have gotten them off undamaged would have been to remove the heads and use a conventional valve spring compressor. Oh well!

The plan is to put the plugs back in their holes, reconnect the plug wires and start the engine to reset all the rockers. I tried to tighten them down to "best guess" but with the engine running I can adjust the lash down properly. If I remember rightly, you tighten down til the engine stumbles a bit due to the valve not closing all the way, then back it off. Better check the manual and see if there are any tips.