Posts Tagged ‘325e’

Car Prep Day 3 – Its alive

Sunday, October 7th, 2007

Day three of car prep was all about getting the engine running. At this point we had had the car with us for several months but we hadn’t yet heard the damn thing run.

We started up by tightening up the head bolts and putting in a new timing belt. After that we adjusted the valve spacing (space between camshaft and valve stem) and began reconnecting that various fuel hoses and wires. We decided not to put the cooling system in until the engine was in running condition to give ourselves some work room in case we needed to replace any additional parts. After everything was connected back up we added some more oil to the engine and started it for the first time.

It’s Alive from rnair on Vimeo.

After sorting out some initial issues with some blown fuses, the car started on just the second attempt. The cloud of smoke on the side was a combination of an untightened exhaust manifold and some oil burning off. After this major success we decided to wrap up the day and were actually able to drive the car outside to park it. It still doesn’t have a cooling system so we havent run it for any length of time but the fact that it moves under its own power and doesn’t make any weird noises is a great sign.

Baby steps from rnair on Vimeo.

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Car Preparation – Day 1

Friday, September 28th, 2007

Now that we had the car at Dietsch Werks, we had to figure out what was wrong with. Day 1 would be all about stripping the car under Robs guidance. We started out by jacking it up and draining the coolant.

The next step was to remove the cylinder head. This was needed because the 325 is an interference engine and the broken timing belt guarantees that we have belt some valves. We disconnected all the hoses + wiring and used a forklift to lift the head out of the engine bay.

Lifting the head

Once we pulled the head off we made a surprising discovery – all the pistons had valve marks on them. This confused us for a bit until we looked at the timing belt and found that it was not only broken but was also missing several teeth. In a regular timing belt break you usually damage the valves in only one or two cylinders before the engine stops turning and prevents further damage. In this particular instance the engine had kept on running with bad timing (due to the missing belt teeth) and ALL the valves had made at least some contact with the pistons.

Marks from the valves hitting the pistons

While all this work was being done on the engine we got to work stripping the interior of the car and by the end of the day it was looking much more like a racecar.

Looking more like a race car

After this we called it quits for the day and felt quite pleased at having accomplished quite a lot on our first work day.

More photos in my Flickr set.

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Car Pickup

Friday, September 28th, 2007

After a couple of weeks of frantic paper writing things have finally cooled down enough that I can go back to writing my blog. First on the list is a series of blog posts about our preparation for the 24 hours of Lemons. Sit back and enjoy the fun. :-)

The first and most important thing we needed to run in the Lemons was a car, not just any car, but a car that we’d be able to buy AND prep for for under $500. Looking through the results of the first race we decided that an older japanese econobox would probably be the best car to run with. We were all set to rummage through the local junkyard when fate suddenly dropped a car in our lap. One of Robs friends had an old BMW with a broken timing belt that was blocking his driveway – he told us that as long as we get the car out of his way immediately we could keep the car for free. We quickly showed up at his door to take a look at the car.

We found that the car was a 4 door 1986 BMW 325 E with 245 thousand miles on the clock. The E denoted that it had the economy engine, this meant lower horsepower but higher torque which should be ideal for the tight Altamont circuit. The car itself was in better shape that I expected, the paint was peeling from 21 years of exposure and he interior was a mess but there was very little rust and the engine “looked” ok with the timing belt being the only obvious problem. Being an E30 meant that the parts were cheap and bolt-in rollcages were readily available. People who had entered the last race had warned us that non-running cars were a huge time sink, but the fact that the car was available and free meant that there was only one thing to do. We rolled the car into Robs trailer and made it our official entry into the Lemons race.

More photos of the car pickup in the Flickr set.

P.S.: We are not cheating by getting a “free” car, the KBB value for a 1986 325E in fair condition is $400 – a non-running car is worth almost nothing.
[tags]24 hours of lemons, e30, bmw, 325, preparation, racing[/tags]

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