 Please help rid me of "ping" |
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| Wyvern |
 Sep 30 2016, 08:49 PM
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#1
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Member  Group: Members Posts: 324 Joined: 7-October 15 From: San Francisco (East Bay) Member No.: 19,245 Region Association: Northern California  |
I am working on a 73 1.7
Valves adjusted to spec Points set using dwell Timing on the nose at 27' @ 3500 rpm (vac lines plugged) She runs fairly well. had lots of ping on a up hill. I could rev through it ... More ping as revs drop under load. Today I put in fresh 91 octane and 16oz of seafoam, took a nice drive up a mountain. Almost all the ping is gone. Should I retard the timing just a bit ? Or other suggestions / input much appreciated. |
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| ClayPerrine |
Oct 1 2016, 04:04 PM
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#2
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Life's been good to me so far..... Group: Admin Posts: 16,422 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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1. get a normal sized bottle of water. Distilled is even better.
2. Get a long piece of vacuum hose. 3. Hook the vacuum hose to the intake. 4. Start the car. 5. Hold the throttle at 3,000 RPM 6. Put the vacuum line in the bottle of water. The water will be sucked into the engine, steam cleaning the combustion chambers and the tops f the pistons. You will get clouds of white smoke out the tail pipe. But it will clean all the crud off the insides of the heads. IF it dies, you will have a tough time getting it to re-fire, so make sure you keep the rpms up. |
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Posts in this topic
Wyvern Please help rid me of "ping" Sep 30 2016, 08:49 PM
audio_file Fuel injected or carbs? Sep 30 2016, 08:58 PM bdstone914 Any idea of the compression ratio? Yes retard the... Sep 30 2016, 09:00 PM injunmort pinging under load is too much advance, stock dist... Sep 30 2016, 09:03 PM 76-914 More Sea Foam or try squirting some water in the T... Sep 30 2016, 09:08 PM Wyvern Thank you for input.
It is stock FI (D jet)
I hav... Oct 1 2016, 12:09 AM Perry Kiehl Clone Make sure the distributor plate in the distributor... Oct 1 2016, 05:56 AM veekry9
An extreme technique,filling each cylinder wit... Oct 1 2016, 06:12 AM bdstone914 I agree with other to focus on the distributor. I... Oct 1 2016, 06:27 AM Mblizzard Also verify fuel pressure, MPS operation, and abse... Oct 1 2016, 06:32 AM r_towle Lots of carbon build up in the combustion chamber ... Oct 1 2016, 11:22 AM mark04usa Try running Premium fuel :wavebye: . Oct 1 2016, 03:18 PM
Dominic
Try running Premium fuel :wavebye: .
He is, 91 ... Oct 1 2016, 03:55 PM injunmort if you think a de-coking is nessesary, i like the ... Oct 1 2016, 05:17 PM Wyvern Hello.
I rigged a spray bottle the kind you would ... Oct 3 2016, 03:22 PM r_towle Sprayed while driving deserves a picture of the co... Oct 3 2016, 05:13 PM Perry Kiehl Clone Actually premium fuel has more additives, burns sl... Oct 3 2016, 09:30 PM |
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