1999 Stag Coaster Ride
or When's the next exit I wanna get off!
Ahhh, the ups and downs of sports car ownership. There becomes a gray area during the
ownership of these vehicles when they occasionally cease to be fun. While these temporary
moments of sanity can cause you to consider selling your car, insanity settles back in and
you forge ahead to remedy whatever ails the beast. If we were absolutely logical and
reasonable, we would at a Mazda or BMW dealership picking out a nice red Miata or Z3. But
the reasons of British car ownership can be the topic of a whole other story.
1999 would go down as the first year that "Kathy's" 1973 Stag would be on the
road after an extensive restoration (the only difference between extensive and expensive is
"p" for poor). During the beginning of the year, things were looking great as
everything was falling into place quite nicely. Some of the final parts had come in to
finish the engine and the interior was starting to look sharp. Finally we could see a light
at the end of the tunnel, and it didn't seem like it was a train either.
Every roller coaster ride starts at the bottom, and of course this project was no
exception. Once the engine was put together, installed and the ancillary items connected,
we were ready for the first crankover. Even though the engine was assembled using liberal
amounts of assembly oil, it is always a good idea to prime the engine using its own oil pump.
On the Stag, this is a relatively easy operation as the drive shaft for the oil pump is
driven by a hex shaft coming off the bottom of the dizzy (learned recently this is the
English word for distributor, gosh you learn sumthin' every day). This shaft also happens
to be 5/16" in size so a socket can be attached easily, eventually ending up with a
portable drill at the other side. The drill is fired up in a anti clockwise rotation to
get the oil pressure up and primed. This did not happen as the drill spun rather than the
oil pump. This is good! Why not bad? Because we could have broke things if I went
immediately to step 2 or startup. During the restoration, the oil pump area was a major
oil leak source. The "warning" here was during the original rebuild. I was able
to remove the oil pump bolts with my fingers alone. No wonder it was leaking all over the
place, loose bolts. Fine, new o-rings were installed during the rebuild, clearance tolerance,
while tight, was within book specs, torqued the pump bolts down to spec and finish rebuild.
When the pump housing bolts were torqued, this tightened the pump rotor to the housing. So
off with the pump, machine down and reinstall. Pump now spins no problem and my drill can
turn off the oil idiot light plus sustain a decent psi on the pressure gauge. We are now
moving up the roller coaster track.
Countdown to startup goes on. So we crank her over, nothing. Well I got spark, I smell
some fuel but nothing. Quadruple check timing and replace ignition parts just for the sake
of doing so. Still nothing. Couple of small squirts of fuel down the throat of the carb and
she fires right up, then dies after that amount of petrol is used up. Pulled carbs off to
see what was what. Floats are perfect, fuel there, everything seems to be ok. Hmmm, Oh Tim,
can you bring your Stag over? Pulling the carbs on the Stag is fairly quick. So we swapped
carbs and she started right up and ran very nice. Ok back to the carb drawing board. What
was eventually found was that I had inadvertantly rotated the startup valve disks 180
degrees out. A small dip but we are climbing higher now.
For the next couple weeks we were at the top of the coaster ride. Kathy and I had our
first date with the car and took it out for a drive and dinner. The Stag was running at
about 95%, the 5% being a problem with a lean running condition. No problem as the Spring
Tune-Up clinic was the following Saturday at LaFox and we could throw the car onto their
diagnostic equipment and have a look see. Most of you know the story of what happened next.
In a effort to find a non-existent manifold leak, a technician was using liberal amounts of
carb cleaner to find the root cause of the lean mixture problem. A carb backfire ignited
the pooling fluid and the top of the engine was engulfed in flames. What seemed like an
eternity, a fire extinguisher was used to douse the flames. While the car left South Elgin
under its own power, it left with extensive heat damage to carb linkages, hoses, ignition
wires, choke and accelerator cables. Not to mention paint damage to the valve covers and
abrasive scratches from the extinguiher on the boot and bonnet. The car had 48 miles on
it since the total restore. The ride has now slammed us down to the bottom. The low point
at that moment was nothing compared to pulling the car into the garage and realizing that
I had to restore the engine bay all over again! In case you are wondering what was the root
cause of the lean mixture condition, it was a gasket on the bypass valve of the carbs.
There can be one of three different types. Once replaced with another type, the mixture
problem was corrected.
Continuing on with the upward swing, I completed engine bay restoration part two in
time for Tune-Up Clinic Part 2. With the help of Gerhard from Fuel Management Systems
(Mark Fisher's boss), we peaked out ignition timing and tweaked the carb mixtures with
his multi-million dollar (well, multi-thousand dollar) gas analyzer. Once some excessive
smoke had been cleared. The car was now running at 110%. I've driven a few Stags before,
but this one was purring like a kitten and roaring like a lion and its all mine .....oh
yeah, and Kathy's too!
Riding the Stag coaster high in the clouds continued for the next few months. The
first car show of the year in Champaign saw some distinct high points. This was the first
long range trip with the car and it ran beautifully! The Stag was the lead car in our
small caravan to central Illinois and fellow ISOA'r Steve Yezo did his best to help keep
the car reigned in. His constant reminders over the CB made me keep it at a respectable
mph. That's what passing zones are for! The Stag along with a Lotus Esprit blew away a
bunch of fuddy duddy MG guys during the ill-fated tour. Who said patience is a virtue?
The Lotus guy and I had a few laughs about that during the show on Sunday. We won our
class at the show beating out the perrenial winner, a nice 1967 Triumph 2000. The Stag
also performed its first rescue mission by transporting Steve and Sue when Steve's tranny
blew out on his 250. The extra seating room allowed us to bring those good folks home
along with their luggage. We be cruisin' the coaster ride.
The road to Stag bliss continued with the summer ISOA camping trip, Blackhawk Farms
Raceway outing, the Sussex Wisconsin show and a host of other travels. This was all done
in due course to put on at least 2000 miles prior to the BIG one, the granddaddy of the
summer, the VTR Convention in Portland, the Maine Course and Nova Scotia!
I won't repeat the trip details as Tim Buja, Kathy Pawlak and Mr. Fuji have been
giving you the scoop on what we did on our summer vacation. As you can see by the pictures
accompanying those stories, we had lots of fun with the cars and fun with our friends. Other
than a few minor dips in the Stag coaster, with an annoying leak coming from the overdrive
unit (that only made itself present in speeds over 75 mph), a carb leak repair and the
tightening of a strut, no other items needed attention.
We left Portland with the Stag winning national honors in its concours class. Continuing
to ride high, we started the long trip back west. The final stretch had our group departing
Cleveland early in the morning. We topped off the fuel tanks and headed on the Interstate
back for home. Tim and Ann said their goodbyes as they branched off to the south to pick
up Megan in Fort Wayne. This left Irv and Brian Korey in their electrically challenged TR6
and Kathy and me in our micro caravan for the last leg.
About 12 miles from the Indiana border, cruising at a leisurely 65 mph, the rear tires
suddenly locked with a momentary chirp. Within milliseconds I disengaged the clutch and
coasted to the shoulder with tach and oil gauges reading zero. I called to Irv, who was
leading at the time, that we have a problem. See how important the radios are! Once on
the side of the road, the bonnet was popped open to see if there was anything obvious.
Everything looked in place. Turning to the underside of the engine bay revealed the horror
of a catastrophic engine failure. The left side timing chain had broken, wrapped around
the crankshaft sprockets and blasted its way through the timing cover. We were going nowhere
fast as this was the end of the Stag coaster ride. Unfortunately it was on I-80 and several
hundred miles from home. The car was towed to the next truck stop. With the help of Irv,
Brian and Kathy, we secured a U-Haul truck and dolly and towed the Stag home to finish its
journey. The highlight of spending a wonderful vacation with our friends and our Triumphs
ended with the indignity of pulling the national champion into the driveway under the power
of a orange Ford F350.
Post Mortem: The obvious failure was caused by the breakage of the left side timing chain.
Bent valves, damage to sprockets and a destroyed timing cover are among the victims.
Preliminary "professional" analysis of the chains showed that they were of
marginal-to-poor quality. Further analysis has revealed that while the chains were of
poor quality, the failure was escalated by a problem with the hydraulic chain tensioners!
Early tensioners have a hole in the face of the shoe that contacts the chain. This hole is
fed oil from one of the oil galleries in the block and supplies lubrication to the chain.
The new tensioners do not have this hole in the face, rather on the side and may not provide
enough oil to the chain. The combination of marginal chains and poor lubrication led to the
failure. Fortunately, this failure has exposed poor part quality plaguing our cars and we
have actions being taken by suppliers to remedy the problem. Unfortunately I have a financial
exposure to repair the motor as there are unanswered questions as to the accountability of
poor parts and proof of purchase. Nonetheless, the rebuild process has started and the Stag
will be on the road in the spring. Thanks go to some great Stag buddies as their help was
invaluable. Mike Wattam of England, Glenn Merrell and Tim Buja. They are the best! The
problem with roller coasters is that while you may get sick sometimes, the ride is still
a lot of fun. Kathy and I will once again be Staggering.
By Joe Pawlak
November 27, 1999
Copyright © 1999 Illinois
Sports Owners Association
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