Just got back my injector cleaning results.
08-28-2004 | 01:24 AM
#1
Thread Starter
Rennlist Member
Joined: Jun 2004
Posts: 347
Likes: 0
From: Knoxville, Tn
Just got back my injector cleaning results.
Hey all,
I'm fairly new here. I've got an 81 auto that had been sitting for many years. I had determined that the injectors were clogged and gummed from years of gas in them. The car would start then die immediately. Anyway, Even if the injectors wasn't the problem I figured it would be a good idea to go ahead and have them serviced. I sent them to Rich at cruzinperformance in MI. He just emailed me back the results yesterday. So I haven't recieved them back yet to put them in the car. Here are the before and after results.
Preliminary Test Results
Test pressure = 43.5 psi Injector No.
1 2 3 4 5 6 7 8
Test 1. Injector Resistance 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6
Test 2. Leak Down Test (Pass / Fail) F P P P P P P
Test 3. Spray Pattern (Good / Fair / Poor) F F F F P F P
Test 4. 60 Second Pulsed Flow Delivery (mL) 74 0 72 74 72 65 73 45
Test 5. 100mL Pulsed Volume 100 0 98 100 98 89 99 61
Test 6. 20 Second Static Flow (mL) 92 0 92 97 95 86 95 61
Test 7. 100mL Static Flow 96 0 96 100 99 89 99 64
Test Results After Service
Test pressure = 43.5 psi Injector No.
1 2 3 4 5 6 7 8
Test 1. Leak Down Test (Pass / Fail) P P P P P P P P
Test 2. Spray Pattern (Good / Fair / Poor) G G G G G G G G
Test 3. 60 Second Pulsed Flow Delivery (mL) 74 72 74 74 74 74 75 73
Test 4. 100mL Pulsed Volume 99 97 99 99 99 99 100 98
Test 5. 20 Second Static Flow (mL) 96 95 96 98 96 96 97 97
Test 6. 100mL Static Flow 98 97 98 100 98 98 99 99
Approximate pound-per-hour flow 24.63 24.37 24.63 25.14 24.63 24.63 24.89 24.89
Comments
Injector #2 initially stuck closed. No before cleaning data available.
Turns out my assumption on the injectors were right, they were in desperate need of cleaning. I will let everyone know how it turns out once I get them back in the car.
I'm fairly new here. I've got an 81 auto that had been sitting for many years. I had determined that the injectors were clogged and gummed from years of gas in them. The car would start then die immediately. Anyway, Even if the injectors wasn't the problem I figured it would be a good idea to go ahead and have them serviced. I sent them to Rich at cruzinperformance in MI. He just emailed me back the results yesterday. So I haven't recieved them back yet to put them in the car. Here are the before and after results.
Preliminary Test Results
Test pressure = 43.5 psi Injector No.
1 2 3 4 5 6 7 8
Test 1. Injector Resistance 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6
Test 2. Leak Down Test (Pass / Fail) F P P P P P P
Test 3. Spray Pattern (Good / Fair / Poor) F F F F P F P
Test 4. 60 Second Pulsed Flow Delivery (mL) 74 0 72 74 72 65 73 45
Test 5. 100mL Pulsed Volume 100 0 98 100 98 89 99 61
Test 6. 20 Second Static Flow (mL) 92 0 92 97 95 86 95 61
Test 7. 100mL Static Flow 96 0 96 100 99 89 99 64
Test Results After Service
Test pressure = 43.5 psi Injector No.
1 2 3 4 5 6 7 8
Test 1. Leak Down Test (Pass / Fail) P P P P P P P P
Test 2. Spray Pattern (Good / Fair / Poor) G G G G G G G G
Test 3. 60 Second Pulsed Flow Delivery (mL) 74 72 74 74 74 74 75 73
Test 4. 100mL Pulsed Volume 99 97 99 99 99 99 100 98
Test 5. 20 Second Static Flow (mL) 96 95 96 98 96 96 97 97
Test 6. 100mL Static Flow 98 97 98 100 98 98 99 99
Approximate pound-per-hour flow 24.63 24.37 24.63 25.14 24.63 24.63 24.89 24.89
Comments
Injector #2 initially stuck closed. No before cleaning data available.
Turns out my assumption on the injectors were right, they were in desperate need of cleaning. I will let everyone know how it turns out once I get them back in the car.
08-28-2004 | 02:46 AM
#3
Thread Starter
Rennlist Member
Joined: Jun 2004
Posts: 347
Likes: 0
From: Knoxville, Tn
Andrew, it come out to $107 and that includes return shipping via UPS. It's $12 an injector. He also replaced the pintle caps, screens, and the seals. For the injectors with the hard to remove rubber hose, he will charge $2 per injector to remove those in necessary. I went ahead and took the time to get them off though. Rich is very helpful and I wouldn't hesitate to ever send anything else to him. Considering the price for 1 new injector from porsche, I believe it was well worth it.
