 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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| injunmort |
Oct 1 2016, 05:17 PM
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#2
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Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
if you think a de-coking is nessesary, i like the idea of sea foam on a vacuum line rather water. also add sea foam to the gas. still think you must verify correct operation of distributor advance and correct timing.
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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 ClayPerrine 1. get a normal sized bottle of water. Distilled i... Oct 1 2016, 04:04 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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