Saturday, June 05, 2010

Roger's Day Out

Today we took the Morris to a Euro-Brit car show. Lots of Triumphs, MGs, Austin Healeys and Volkswagens. Quite a few Range Rovers, Minis and Porsches. On Ferrari, one Lotus, and one Morris.

The trip, fewer than 10 miles, to the show was uneventful. That is until I stopped for parking directions. At that point Roger refused to start. That has not happened before (when I had gas in the tank – I have already run out twice because the fuel gauge doesn’t work). Fortunately the car is British so no one was surprised when it wouldn’t start.

I popped the bonnet and a bunch of guys leaned in under the hood. These guys were great. And knowledgeable. And prepared. After checking to make sure there was fuel, they checked for spark. The spark was weak. Eventually they had replaced the distributor cap, the rotor cap, and the spark plugs. And Roger was alive again. The amazing part was that they had all these parts with them. And more.

I got the name of the guy that supplied all the parts so I could replace them. I also learned a lot through the process. Basically the car didn’t want to start because the spark was weak – it basically needed a tune up. The weak spark alone was not the problem. The plugs were also really dirty. The plugs were dirty because the car was running rich. And the car was running rich because the electric fuel pump was the wrong part.

Normally these cars have mechanical fuel pumps but they often get replaced with electronic equivalents. The problem was that this one pushes about 5-7 pounds of pressure where the carburetor only needs about 2 pounds. The increased gas pressure basically forces gas through the carb which is what has been causing the car to run rich. This all made complete sense, after it was explained.

The car has been running rich. I had been studying how to tune the carb in order to correct the problem. Using the instructions from my manual, I had tuned the carb down as lean as possible. I was baffled as to why it was running so rich. Now we know. We also know I need to replace the fuel pump. (One of the guys even offered to loan me one.)

I also found out that as the distributor wears out the car loses power at medium to high RPMs. I would say that based on this knowledge I would say my distributor was well worn. The car definitely felt peppier after the meta-tune-up.

And finally I received lots of good advice I plan to follow:

0. Replace the fuel pump. Soon.

1. Finish the tuneup. Replace the plug wires, the condenser, the coil, etc.

2. Carry some spare parts in the boot. Extra plugs, distributor cap, rotor cap. The parts are cheap and don’t take up much space.

3. Buy some extra tools and leave them in the boot as well. With a Harbor Freight nearby, I think I can accomplish this for about $20.

One of guys in my neighborhood invited me to this car show. I already knew about it and planned to attend. I had talked with him about my carburetor already. He was at the show and had brought me a copy of a tuneup guide for my carburetor. (Did I mention these guys were all really helpful.) Ernie is a very interesting and knowledgeable guy. He is also a Fiat guy. I believe he has 4 Fiats, maybe 5, 3 are convertibles. At least one is a parts car. He also has a couple of 1967 Datsun 1600s which are also convertibles and which I think are pretty awesome cars – I mentioned one in a post several years ago when I first saw one in a salvage yard. Most of his cars are still in the project stage and I suspect he is actually working on all of them. (And he is an accomplished brew master.)

Last night the local Euro-Brit car club went on a drive. I had wanted to attend but I was pretty sure Roger wasn’t up to it. It is a good thing I didn’t attempt the drive. Hopefully we will be up to it next year.

Overall, I had a very enjoyable day, even with the breakdown. The kids went with me and I think they had a pretty good time as well.

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