Engine Cleaning?
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
very good question.
The 92-96 Vettes (93-97 Z28/Transams and 94-96 Impala, Caprice, Roadmaster and DeVille) all shared the LT1.
The LT1 has a distributor called the OptiSpark.
In 1995, GM updated the OptiSpark.
However, the early OptiSparks are very easily damaged by too much water. They are located low on the front engine cover, between the crank and cam shafts. The waterpump is above it, the pump has a tendency to leak coolant onto the OptiSpark. Water is bad, coolant is toxic to OptiSparks!
If you want to clean your motor, use some Simple Green on the stained areas and using a VERY low pressure hose and a scrubber, GENTLY and CAREFULLY rinse off the Simple Green. Keep water off the front of the engine. The motor should be warm, but not hot.
That should work great!
The 92-96 Vettes (93-97 Z28/Transams and 94-96 Impala, Caprice, Roadmaster and DeVille) all shared the LT1.
The LT1 has a distributor called the OptiSpark.
In 1995, GM updated the OptiSpark.
However, the early OptiSparks are very easily damaged by too much water. They are located low on the front engine cover, between the crank and cam shafts. The waterpump is above it, the pump has a tendency to leak coolant onto the OptiSpark. Water is bad, coolant is toxic to OptiSparks!
If you want to clean your motor, use some Simple Green on the stained areas and using a VERY low pressure hose and a scrubber, GENTLY and CAREFULLY rinse off the Simple Green. Keep water off the front of the engine. The motor should be warm, but not hot.
That should work great!
Instructor
Joined: Nov 2004
Posts: 221
Likes: 0
From: dickson tn.
ijust bought a 96 a few weeks back and when it comes to my cars they are clean i used orange blast from walmart and used a water hose not realizing about the opti spark till i got on the forum but my hose isnt no pressure washer either luckily i have had no problems and engine compartmen looked great after armoral was applied....
Drifting
Joined: May 2001
Posts: 1,295
Likes: 2
From: Surprise Arizona
Dont be so worried about the 95/96 Opti's. They can take a little water. Pre 95 is another story. If it gets wet you will be changing it. Do a search for opti and read up.
Do your best to clean the front of the engine with Simple Green spray and rags on your 94. The rest of the engine and engine compartment can get wet like any other engine. Just be carefull around electrical items not to direct the spray directly at them.
Do your best to clean the front of the engine with Simple Green spray and rags on your 94. The rest of the engine and engine compartment can get wet like any other engine. Just be carefull around electrical items not to direct the spray directly at them.
