Pinging, Detonation, Pre-ignition Problem Solved. Was it a lean condition, bad fuel, wrong timing?

[@kenf2662]

Just in general things to check: advance timing so at 3000 rpm @32TDC, run high octane and or quality fuel, Lean condition run carb Idle mixture run them a hair rich, coolant thermostat fast acting (not high flow) give the radiator a chance to cool the engine. Static Timing from 10 being the min and 12 being the max. Yes for, you running to lean got those cylinders to hot.... Great video.

[@HeavyPedalGarage]

Sounds good! Thank you!

[@lodollar23]

I've really enjoyed your build series. I've learned quiet a bit from your research. Thank you for your dedication! I really like how you teach different topics. I'm really a 50's ford truck guy at heart. I had rocket valves milled in a cobra head years ago. Man that baby would get er done!

[@HeavyPedalGarage]

That rocket cobra combo sounds wicked. Thanks for the kind words!

[@TransamObsession]

Love your car, and the colour, only recently found your channel but enjoying watching the progress you made, very cool 😎

[@HeavyPedalGarage]

Welcome aboard! Thank you for the compliments as well!

[@BackyardGarage1]

Glad you figured it out! I would have guessed low octane fuel or fuel pressure. Great trouble shooting!

[@HeavyPedalGarage]

For sure man. Took me a minute but it was a little frustrating for a while. Thanks buddy.

[@BackyardGarage1]

@@HeavyPedalGarage fixing an issue of finding the solution is the best feeling in the world!

[@bcbw07]

Nice! I put and low pressure electric fuel pump on my 71. Kinda chokes out at full throttle but I think it’s a carb issue. Beautiful build! I’ve learned so much from this channel.

[@HeavyPedalGarage]

Thanks! Im just trying to pay it forward. Ive learned a lot from folks on youtube too.

[@GruesomesGarage]

Great troubleshooting on your part. Sometimes it’s a small issue like the wrong sized fuel pump.

[@HeavyPedalGarage]

small issue, lotsa time! thats the biggest ahh haa moment ive had in a long time. lol

[@kenf2662]

In the summer if that temp creeps more than 10deg look to change that thermostat (stay away from high flow). 200deg is just on the edge hot for a create engine . big block 190 small block 180

[@HeavyPedalGarage]

Gotcha. thanks for the advice!

[@kencharrette3427]

Nice car, glad you figured it out, nothing worse than chasing a problem. I've enjoyed all your paint videos. Because of you I just received my Urechem sealer, base and clamor clear today for my 65 GTO, I had first ordered single stage another brand and could not get it to lay without orange peel (on practice parts), hopefully I can practice and get the Urechem to lay out. Motor sounds great who built that for you. Thanks

[@HeavyPedalGarage]

Good deal on the URechem. I really liked it and I'm a novice/hobbyist. Good thing about have a few coats of clear is that any texture/dirt can be buffed out! I ordered a long block from Len Williams Auto Machine in OK. He is on the web. Super great price and i had zero issue with the build quality, shipping, customer service was great. Len is old school though. He only takes checks or cash and it did take him several months to get it built and shipped. I put the intake, carb, distributer etc on and did the break in out in Heavy Pedal Garage. If you are looking for a quality affordable build, he is the man!

[@kencharrette3427]

I figured when you said 9.25 compression and 6x heads it was probably Len, yea he built my 461 stroker for my 67 firebird. Runs great almost scary lol. Son and I did a total frame off, like new, but now have decided to sell it, with about a 100 miles on it. Only because the 65 GTO is really my fav car. I had 65 GTO when I was 17. Thanks

[@jakebullet8990]

I had the same symptoms about 6 months ago in my 65 Barracuda. Turned out to be a weak fuel pump. Swapped it out and good to go.

[@HeavyPedalGarage]

right on. dang fuel pumps!

[@ArrowheadGarage]

Got it running!!!! Right on!!

[@HeavyPedalGarage]

Yeessssir! took a minute, but i got it!

[@irredeemablydeplorable7581]

Thanks for sharing this. I have the same car, I don't have any pinging or detonation but it seems to fall flat around 3000 rpm and I have the shallow canister pump on my 455. When you went to the deep canister pump, did you have any interference issues with the rubber inlet fuel line and the pitman arm?

[@HeavyPedalGarage]

No issues. Things get a little tight but it’s good.

[@shots-shots-shotseverybody2707]

On the older Pontiacs the Creedlesoakers sometime cankle in inclines and declines above 2% grade. An alternative is to change the dottie floats in the Stroffometer outside of the inner tank which sits on the inside moving sideways😅

[@HeavyPedalGarage]

i got my cankle caught in my creedlesoaker one time. It hurt. wont do that again.

[@RALPHD57]

Great video, Thanks!!

[@rotorblade9508]

you could install an AFR WB to make sure you are running the right mixture.

[@HeavyPedalGarage]

good suggestion. that would be sweet!

[@kathyperego4949]

i have a 1973 formula factory 455 4 speed with a/c and it does not have a clutch fan 7 blade direct mounted fan from factory and huge harrison radiater which is org.joe p.engine reworked 30 over comp cam and head work its a monster but in summer on highway still gets hot around town runs at 160 all day long..thanx for video..joe p.

[@HeavyPedalGarage]

Nice 73 formula. Sounds like a beast!

[@kathyperego4949]

@@HeavyPedalGarage thank you only 227 made never seen another have had for 17 years..joe p.

[@JoDoDesigns2011]

Love the second set of gauges under the hood.

[@HeavyPedalGarage]

For sure. I added those thinking i would use them for the motor break in only....but they have stayed. I love em too!

[@JoDoDesigns2011]

@@HeavyPedalGarage yeah when I did mine, I did hook a tach to watch my rpm when I did mine

[@watdafuk94]

Hey Nate, great content! After watching this I realized I have the wrong pump as well and having overheating issues. I have the right pump ordered but having issues finding the right fuel line. Any chance you could pass along that part number? Thanks in advance.

[@HeavyPedalGarage]

Glad the video helped. I got my fuel line from Classic Industries. I think it was OER brand. I dont have a part number unfortunately, but my block is for a 1973 GTO and the line listed for that block fit just right.

[@thisisyourcaptainspeaking2259]

Detonation occurs when the fuel stops burning prematurely. Peek cylinder pressure needs to occur at 14*ATDC

[@HeavyPedalGarage]

Good info. Thanks!

[@thisisyourcaptainspeaking2259]

There's a very good article on the subject floating around the interwebs in pdf file format, a quick search for "allen w cline detonation" should produce a link. I recommend everyone interested should read his article.

[@MrDevilldogg666]

At 9 anything to 1 compression you will be good with regular gas. You are probably losing ho by running premium. Understand how octane rating effects an engine. Alsowhat is your head gasket thickness and how deep in the cylinder does the piston sit tdc. Open or closed chamber heads? Im thinking you lack effective quench

[@HeavyPedalGarage]

good advice. not sure on head gasket thickness or piston depth. ive read a little about quench, but will try to learn more.

[@chrismadeley1576]

Intresting, me new pump 6psi but still got detonation . Might try bigger flow pump! Just payed $650 for new carby that didn't help🙈

[@HeavyPedalGarage]

Good luck on you project. i chased my issue for a while before i got it figured out. Be sure to check the timing!

[@EduardoAguirre-pj3cr]

Also that carb filter setup looks restricted.. put check valve in fuel line. At most

[@HeavyPedalGarage]

I’ve considered that along with a fuel pressure gauge

[@EduardoAguirre-pj3cr]

Maybe gauge cluster is creating sone interference with distributor.?

[@HeavyPedalGarage]

Gotcha. I’ll have to look into that.

[@firebird70]

hey Nate, JB here, im guessing that by now, you have it sorted out and dialed in ?

[@HeavyPedalGarage]

yup. running pretty strong now!

[@markekberg8371]

Trying to chase ping myself on a 383. I am running a sniper so i can see all parameters. Cant get it.

[@HeavyPedalGarage]

Good luck buddy! It can be very frustrating.

[@davidp187]

Really really great

[@HeavyPedalGarage]

thank you!

[@michaelerickson1518]

I had a 389 that had a pinging problem ended up being the points gap was too big, as in too much dwell

[@HeavyPedalGarage]

those pesky points! now this something i have not had to work with yet.

[@michaelerickson1518]

@@HeavyPedalGarage yes it required a small Allen wrench threw a small slide open window on the side of the distributor cap, while running you can adjust till it sounds right

[@racingruth9470]

thank you!

[@HeavyPedalGarage]

You're welcome!

[@fullmetalfreedom]

Loved it

[@HeavyPedalGarage]

Me too! Thank!

[@peetky8645]

will knock give you s serious blow to the car. I have a severe intermittent shudder going uphill at 60mph in the mountains. i thought it was a transmission shift but letting off throttle and octane booster helped. buick 1999 3.8L... i think it is pre-ignition. plan - scan computer, plug check, borescope. I am losing coolant and i think alternator elbow is leaking. plan to replace elbows and upper and lower manifold gaskets.

[@HeavyPedalGarage]

Might try changing the fuel filter. Hopefully it’s not burning coolant. That would be a head gasket failure.

[@peetky8645]

@@HeavyPedalGarage i think these leak around the plastic intake as well as the elbows. will check fuel filter. thanks

[@MrFireman164]

Awesome 😎

[@HeavyPedalGarage]

Thanks 🤗

[@josephnubile1970]

really liked the video but get rid of the crappy music. just want to hear the sound of my people...lol

[@HeavyPedalGarage]

Gotcha! This thing does sound sweet!

[@alltime4417]

It would be nice to her the engine on your cruise instead of that corny fn music, lame

[@HeavyPedalGarage]

Thanks for checking out the video. I hope you are having a better day. Cheers.

[@brawler1997-v6t]

I have the same problem on my 73 charger i put new plugs and wires oil and oil filter new fuel pump new thermostat new carburetor and still the same i think its the distributor timing