[Vwdiesel] A TDI tale of woe and strife, hammers and PBlaster
dieseltdi at verizon.net
dieseltdi at verizon.net
Wed Jan 25 21:33:14 EST 2006
For those of you that may wonder why you must have the injector "heat
shields" (really just copper crush washers} and wonder why you can't
just reuse the old ones....read on! I have been working on the 1Z
engine that I bought for my Caddy TDI conversion. New belts, clutch,
hoses, the usual stuff. Well I also bought a set of high flow
nozzles and had them installed in some injectors that I had laying
around. I pulled the stock injectors from my Jetta (they have been
in the car almost 80000 miles) to install the high flow injectors to
see how they run. The old injectors slipped right out and the new
ones went right in no problems. I drove them for about 2 months and
then pulled them to install them in my donor engine. This seemingly
simple task has turned into the project from hell. I spent a WEEK
trying to pull the injectors out of the 1Z engine. The would not
come out! I could get them to turn but it was the top of the
injector unscrewing from the nozzle section. Finally out of
frustration, I unscrewed the top of one completely, pulled out the
innards that I could get and then filled the hole with PBlaster and
then waited a full week. I screwed the two halves together but still
NO GO! I applied heat, I applied more solvent, I beat up the
injectors with a hammer trying to loosen them NO GO! Finally out of
frustration, I pulled the head, definitely not what I really wanted
to do. I then disassembled the injectors (by now ruined anyway) and
used a punch to drive out the nozzles which were absolutely caked
with carbon. Fine I think, the nozzles are out. Well the nozzles
were out but not the bottom part of the injector that holds the
nozzles. After some more heating and putzing around with it, I
reassembled the injector with the nozzle portion inside but upside
down to give me a flat surface inside the injector to push against.
Using a old screw driver shaft with no handle, I put it through the
injector hole into the injector and pounded the injectors out one at
a time. It took at least 5 good hits with a heavy framing hammer to
get each injector loose. Each one was caked with carbon and the
holes were caked with carbon and guess what was missing? No copper
washers! Now I have to buy a new head gasket and new stretch bolts
for the head (and expense I wasn't counting on). Moral of story, the
crush washers are cheap, do try to save money by not replacing them
when you remove the injectors, you will regret it later and make sure
to get the actual OEM washers. Turns out most of the after market
washers are too big and will not seal properly and the keep the
injector from actually seating inside the cylinder. Now to go take
some tylenol for my old, aching shoulders. hayden
Visit my website at: http://mysite.verizon.net/resosxp8/mydieselpages/
Proud owner of:
2004 Passat TDI GLS, 2.0l, 8 valve, 134 HP, 247 lb/ft of torque
(making 150 hp with Diesel Power Tuning Box), Blue Graphite,
Anthracite leather interior, ABS, ESP.
1998 Jetta TDI (Wetterauer Chipset, 2 1/2" exhaust, K&N Filter, 140K
+ miles, and running biodiesel)
1981 Rabbit Pickup -Awaiting a TDI engine swap with a 96 Passat 1Z
engine.
And many, many, many VWs; from a 1946 Beetle (11 Beetles total), to
Vans (5 - 3 splitties, 2 bay window), Rabbits (3), Karmen Ghia (1),
Jettas (5), Passat (1), Dasher (1), New Beetle (1), and Rabbit
Pickups (3) most now gone but not forgotten.
1982 Suzuki GS 650GL - resurected from a farm, now back on the road,
Old school bike for an old school guy!
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