We’ve all been there man, in one form or another. Don’t beat yourself up too hard man. But think about how many people you just helped too. 😎
@jonathanmorrisey57713 жыл бұрын
Chris, thank you for the shoutout and the kind words. Your video will educate the early c4 owners of the different spark plugs. A bit of history on the L98 cylinder heads. 1985 used the iron cylinder heads and was supposed to be the only year with the iron cylinder heads. 1986 started production with the aluminum heads and the heads started cracking around the lower head bolt bosses. These heads were replaced under warranty and there may have been a service campaign to get the heads replaced. The legend is that all '86 convertibles are equipped with aluminum heads and all coupes after convertible introduction also have the aluminum heads.
@mycorvettelife3 жыл бұрын
Good stuff! 👍
@xXcashXx33 жыл бұрын
The chevy small block is such a good engine theres a reason why it was in production for more then 50 years
@lanchedriver56553 жыл бұрын
I agree with Nash, we've ALL done something with ours "toys" that we look back on with just a touch of disgust, embarrassment, regret, thankful to have survived, etc... Thanks for your willingness to share all your Corvette experiences with us.
@jday14273 жыл бұрын
Chris, I glad it wasn’t the other way around. ( long reach plugs in a standard reach head).Could’ve been a costly mistake. Your videos are great and inspire other car enthusiasts to undertake these projects. Keep it Up!
@dukeman75952 жыл бұрын
Yeah man it would have been catastrophic.
@rotorblade95082 жыл бұрын
the longer thread also provides more force to keep the plug in tight and aluminum being softer it protects the threads, anyway the pressure is like 1500psi or a bit higher so I guess they can hold at least for a while. The other reason is they get better cooling from the head.
@thbemky8277 ай бұрын
does it have enough clearance to function properly if you put the longer aluminum ones in the iron head?@@rotorblade9508
@alessandrocaroni45103 жыл бұрын
Hi Chris, my name is Alessandro and I live in Italy. I recently bought my Corvette C4 and I found all your videos very interesting. I wanted to thank you and wish you good work for the future. Thank you, see you soon
@rotorblade95082 ай бұрын
with those short plugs the spark begins inside the cavity and should mean slightly longer flame propagation so it would need slightly more advance. Mechanically it puts twice as much stress on the aluminum threads and these engines are also pretty high in torque. there is also less heat dissipation through the treads but I don’t think it’s a problem
@paulmoss79403 жыл бұрын
Bought a lo mileage 96 LT4. Decided to install fresh plugs and wires. Went to the trouble and expense to source correct GM plugs and red wires. When installing ,I found the #8 plug loose. Dodged a bullet there. She runs like a beast to be stock. Use only AC/Delco parts in your C4 when possible.
@Rayzrs2 жыл бұрын
Again, I learned something new. Thank you Chris and thank you and Jonathan. just looking at the valve cover will let me know.
@GregSr3 жыл бұрын
I bought my '88 in '89. After about 5 years, it was going through alternators almost yearly. I finally figured out what was going on. The alternator would fail on a hot SoCal day while stuck in traffic with the AC on MAX. I was getting Pep Boys "Lifetime" warranty alternators. They replaced each one without any explanation why they were failing so much. I actually read somewhere online how Pep Boys (and others) puts a very cheap Chinese diode set in the alternators. It would work ok in light or moderate loads. But, in a heavy load situation such as stop and go driving on a hot summer day, with the AC on high, one or more of the diodes would fail. So, I decided to cut my losses and NOT get my next alternator at Pep Boys. I bought a high amperage ($$$) alternator about 20 years ago and it is still working.
@brutallybrutalbrutality65052 жыл бұрын
Do you have a link for it?
@GregSr2 жыл бұрын
@@brutallybrutalbrutality6505 Sorry, that was too long ago. I probably bought a premium alternator through Amazon.
@keithcooper90873 жыл бұрын
Great info! It's amazing what some of our co-corvette owners know and notice things that slip by the rest of others. It is great that we can pass info via this forum. 👍 Can't wait to hear the new c4 exhaust!!!
@joef2593 Жыл бұрын
Thanks for the video! Mine was idling very weird at times, decided to just do the plugs, found out that the incorrect plugs were in also!
@adventureswithbuckarugh36823 жыл бұрын
Great job Chris. You right none of us know everything about everything. I've found it to be a good practice to lay out the old parts and new parts and inspect them carefully. If they are visibly not the same then find out why. A big thumbs up to your viewer for catching that on the video. I wouldn't have ever noticed.
@adriansantana22207 ай бұрын
I just installed mine yesterday and realized they are the wrong ones too. I’m on my way to buy the correct ones and waiting for the cables to come in. Double work. I didn’t run the car.
@markfurchtenicht82743 жыл бұрын
You can’t go wrong with the right spark plugs. Glad it worked for you! 👍
@Popsplace42 Жыл бұрын
I actually did the opposite and put the long reach plugs for aluminum heads into my iron heads.. the old plugs were long reach too, good news is it never hit pistons or did anything horrible. Got the correct plugs back in it now.
@SuperGerry20093 жыл бұрын
Hello Chris doesn't blame you yourself it can happen to anyone and we've all learned from it I'm glad for you that there was no harm, Chris thanks.
@richarddobreny66643 жыл бұрын
On the C5, it could be your harmonic balancer that is causing the belt squawk issues
@Michael_Lorenson3 жыл бұрын
Yep, if that hot rod hasn't had a new balancer installed, it needs one.
@marlinperkins92703 жыл бұрын
I had the same issue, and replaced the harmonic balancer and the problem was solved.
@RT10Viperman Жыл бұрын
At 7:11 the belt was on the side of the pulley..!😎 Ive got an 89 That I saved from the stripper and ive got the engine done and back in the car but it is running extra rich. No codes stored..
@eddiebrown95903 жыл бұрын
Heres a tip from an old racer, If you have an engine that uses oil and fouls up plugs, like an old fork lift or farm implement etc, use a short reach plug in the thing and the plugs wont oil up, my old fork is running proof of that. As for your little gaff ? WELL this happens from time to time, after all we are ALL human. Keep up the good work fella and i will keep watching........ Eddie C4 Australia.
@choppercrest3 жыл бұрын
Did the same thing. Had no idea about 86 having the 2 different alloy/ iron heads! Of cause I got the wrong ones haha
@samstrolia Жыл бұрын
I actually caught the shop I went to make this mistake but have since replaced the plugs with the proper .035 gapped (with the gasket) plugs. Also torqued to 12ft/lbs. Anyways, nice video!
@Joe-wv7pv3 жыл бұрын
Looking forward to the exhaust. Been trying to make a decision for my 87 convertible.
@vincentcerniglia29223 жыл бұрын
I have a magnaflow catback on mine and it sounds pretty great
@jbtaylor9752 жыл бұрын
🌴Tip of the day:Brisk USA Spark Plugs are Totally Nuclear.🐂
@mrphiscal3 жыл бұрын
Im glad you willing to accept constructive criticism. Glad you fixed it on camera
@mycorvettelife3 жыл бұрын
That’s what this channel is about. Learning and teaching others.
@thbemky8277 ай бұрын
you just saved me from fkn myself... i got iron heads and i bought the aluminum head spark plugs
@timhamilton60783 жыл бұрын
Great videos. I noticed that your serpentine belt wasn't on when you said let's go start the car. I cringed seeing that. I'm sure the belt seated itself when you started the car, but still was scary to see. Keep up the great videos. C5 50th anniversary convertible owner myself.
@GregSr3 жыл бұрын
I spotted that too. Depending on rotation, the belt will derail and shred itself. I speak from experience with my '88 C4. Like you, I also have a C5 50th Anniversary.
@Musky4lyf34 Жыл бұрын
Lol I'll take the plugs lol
@jimharrow81043 жыл бұрын
Close call... Somebody had a good eye...
@Dryloch11 ай бұрын
You almost scared me. I bought these plugs for my LT1 engine. It seems they went back to that "wrong" design for the LT1 engines.
@dicklarge19013 жыл бұрын
Love the C4 content.
@Its_Razza Жыл бұрын
Hey everyone! I just wanted this video, thank you guys for the information! I just picked up an 86 c4 the other week, it’s due for some spark plugs. I’m confused after this video about which spark plugs to buy. Im unsure if it’s a late 86 or early.
@charliedrobac20063 жыл бұрын
Charlie Drobac lives in Mesa Az and I have an 1986 Corvette. I was going to purchase a new set of plugs
@mycorvettelife3 жыл бұрын
They have already been taken.
@chrisrais6676Ай бұрын
This is great stuff What jack/lift is that on?
@dicklarge19013 жыл бұрын
What do you think of underdrive pulleys? They claim 10 to 20 HP GAIN.
@mycorvettelife3 жыл бұрын
🤷♂️
@bernarddesanglois86903 жыл бұрын
I have a hard time believing that the original Bose radio could draw that much voltage... even though the eprom used to keep memory of the radio broadcasting station are old technology ... sure it draws some 25mA as well as the ECM when engine not running and key off. Most of the time when alternator go wrong it is because one of the diodes in the regulator is tired or cooked... when tired : 14V when running cold... then 11 or so when hot. Now I admit that if a short occurs in the radio amplifiers like power relays located inside the doors...(not really waterproof..) the case may happen.
@marcosfernandez28893 жыл бұрын
If you are getting low voltage off of your alternator, that's a common problem. It's because you don't have the factory radio in. I know, it sounds ridiculous, but I've gone through 4 alternators until a Corvette expert saw it. It usually happens when the car has heated up and the cooling fan kicks in. The best thing to do is find a factory replacement or redo the entire system. I was told that each speaker has it's own amplifier, therefore not any radio can work. However, there are some that make alternate radios. But you gotta look into that.
@45auto823 жыл бұрын
@ Harry Ballzak So you are saying the car can show low voltage when the cooling fan cranks on AND the wrong radio is on? Does it do it with radio off? Do you believe it is because the wrong radio draws too much AMPS? Just curious...not trying be ugly here. Thx.
@marcosfernandez28893 жыл бұрын
@@45auto82 I honestly don't know the real reason, but it seems to be a very common problem. I have several friends with early C4s with the same issue. Even if you get an alternator with higher amperage. I ended up redoing my entire radio system and it solved it.
@srf4442 Жыл бұрын
Were the correct plugs the NGK BKR4EIX?
@dukeman75952 жыл бұрын
Had you the reverse it would have been catastrophic. Pistons hitting the plugs, plugs exploding into the cylinders, errant plug parts being sucked into the heads and valve train, subsequently destroying the engine.. Excellent catch by the viewer who alerted you..
@payperjay35303 жыл бұрын
Definitely subscribing to this guys channel I have a 94
@mycorvettelife3 жыл бұрын
Welcome !
@MT_533 жыл бұрын
Great, informative video!! Hey...what's that music at the end where you have all 3 of your cars shown?? Catchy tune!
@albertrincones34032 жыл бұрын
Goos afternoon...everybody. I have a c4 1990 corvette and want to know what is the feelig gauge of the new iridium ones that you put into the vette. Tks...Albert from Aruba. GOD bless.
@dicklarge19013 жыл бұрын
Do you send to Canada? I’m long time subscriber
@JoseRodriguez-qf9ty2 жыл бұрын
Why was it making spark in the cylinder hole?
@johnsmithth33183 жыл бұрын
I put anti-seize on the threads,pain in the neck job
@flatearthvegans94463 жыл бұрын
👍👍
@williamsurface66613 жыл бұрын
I could use them👍🏾
@paulreithknecht56163 жыл бұрын
👍
@VictorMartinez-rn9xu2 жыл бұрын
Yeah unfortunately I'm going to the same thing right now
@Hannibhaal7773 жыл бұрын
So 1985 use shorter plugs ??? Right
@peteradam26543 жыл бұрын
What type of NGK plugs BKR…?
@chriskeller67333 жыл бұрын
Thanks for sharing that. I'll be sure to look at that when I work on my c4. Are you going to do another road test run, as before ,after you install the new exhaust? lol
@mycorvettelife3 жыл бұрын
Yep
@frankatanasio47403 жыл бұрын
Interested in the plugs if they work for an 84 corvette
@mycorvettelife3 жыл бұрын
Already taken.
@remaxjosephingram84912 жыл бұрын
Spark plug gap is ???? .035 or .045
@mycorvettelife2 жыл бұрын
Either seems to work fine.
@gocanes14063 жыл бұрын
I'll take them off your hands. I have an 86 with iron heads and am right around the corner from you
@mycorvettelife3 жыл бұрын
Already taken.
@bigballershow1 Жыл бұрын
If someone had to tell you you’re putting in the wrong spark plugs, then you don’t need to be making videos on how to change C4 Corvette, spark plugs!
@r.j.s.kierkels22183 жыл бұрын
Why it was running on the wrong sparkplugs? Simple: it's a Detroit iron! LOL
@Michael_Lorenson3 жыл бұрын
ALWAYS use the plugs installed by the factory, if at all possible. There is nothing to be gained from any of the 'superior' aftermarket plugs, which are mostly marketing gimmicks. The exception would be a case where serious engine mods call for a change in what's called 'heat range'. Physical dimensions, heat range, and electrical resistance values must all be correct. The best way to ensure that is to run the OEM plugs.
@mycorvettelife3 жыл бұрын
This is 100% false.
@Michael_Lorenson3 жыл бұрын
@@mycorvettelife OK, explain why it's false.
@mycorvettelife3 жыл бұрын
Iridium or even Platinum plugs will absolutely last longer than standard plugs. There is plenty of research to back this up.
@Michael_Lorenson3 жыл бұрын
@@mycorvettelife That's why I said "mostly" marketing gimmicks. The one advantage expensive plugs sometimes offer is longevity. But, while they cost 5-6 times as much, they don't last 5-6 times longer. Besides, new cars regularly go 100,000 miles on the original plugs. Hence, nothing to be gained. You didn't even address any of the things that are actually important: physical dimensions, heat range, and resistance. Too often, aftermarket plugs meet the physical dimension requirement, but heat range and/or resistance are incorrect. The best way to ensure you get the right values is to use OEM plugs, gapped to OEM specs. But hey, you're the expert. With only 50 years of experience, I haven't had time to learn much yet.