Installing Valve Cover Gaskets on Olds 307 V8
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- čas přidán 9. 07. 2024
- Olds Guy's Garage EP3: New Valve Cover Gaskets. In this episode we will be installing new valve cover gaskets on the Olds 307 cubic inch V8. We will performing this task without removing or loosening any of the pulleys. This video will go into detail tools used, tips for organization, and an orderly process for clearing space around each valve cover. when we are done we will go for a test drive!
- Auta a dopravní prostředky
GOD BLESS THE HEAVENS A VIDEO ON MY ENGINE?!?
LOL!! Yes!
I appreciate this video so much. I completed my driver side first because I knew that's where my leak was. Just looking at that passenger side which isn't leaking, makes me want to throw in the towel.😅😅
Passenger side is quite a task for sure!
Good video. Good to see a visual to see just what a real PITA it is to change the valve cover gaskets on a G-body Cutlass with a 307.
Thanks!! Best to get it done right first time for sure.
Just did this on a 1990 Cadillac broham, nightmare job. I didn't use a punch or silicone, I tucked the gasket in with my fingers after setting the gasket on the head then putting the valve cover over top of it. Also used a pick to align the holes. Anytime I've used silicone on rubber gaskets they leak. Learned that as an independent/dealer tech.
So did the No silicone job work? I’m asking because after 3 attempts with permatex my cover is still leaking and I’m about over it
@@lauedbeatz5655 yes it did. just a nightmare to do, I laid the gasket on the head. then slipped the valve cover it, worked it with my fingers and a pick to line up the holes. you may have to buff down the surface of the head some to get it super clean .
@@justinyoungstown ok I’m gonna try this after I scrape a .25” of gasket maker off the cover lol I’m also using rubber gaskets just fyi. I think it may be possible that the bottom middle bolt hole on the cover may be uneven too. Hope this works though. Glad my passenger cover isn’t leaking atleast
@@lauedbeatz5655 u sure it is not old oil leaking/ burning off? ur taking where the slinky looking things attaches to the exhaust? could be old excess oil. I've learned over the years to never use silicone on rubber. had a few good leaks from doing so. even a master gm tech I work with now and these cars where in his prime said don't as well. but to each his own.
@@justinyoungstown i don’t think so. It was leaking from the bottom middle area for a couple days then I tried it again and it was only leaking from the rear bottom. Just redid again a few moments ago and now it’s back leaking from the middle again(after wiping the area off). Of course it gets to smoking after a few mins too
With the old school V8 engines your better off using cork valve cover gaskets in most cases. The main reason being that the sheetmetal valve covers bend and deform so easily and if the valve cover isn't 100% flat then the rubber gaskets will almost certainly leak, some engines like small block Chevys also have a rough cast valve cover sealing rail and the rubber gaskets never work on those, the Oldsmobile engines aren't as bad because they have a machined valve cover surface but I always opt for the cork gaskets, put them on dry and do not overtighen and they will usually not leak.
Note taken! Rubber was on them originally and havent had any issues. I like the rubber because its reusable if you have to remove the valve cover such as on a project car. Yes its certainly important to flatten the valve cover if necessary.
I remember working on a 1986 buick regal limited i owned with the same 307 it had all thise hoses and i remember on the drivers side valve civer had a yellow ok stamped on from the assembly line brings back memories
On the Olds 307s, they were white stampings, round stamps with the "timing ok" with the test stand letter. They often smeared them and some are harder to read. Once the timing was checked at the engine plant and was correct, the stamp went on.
@@beavisaurus that's cool you learn something new every day great information I've always been an Oldsmobile fan
Thanks bro helpful
That's great! I also snugged the valve cover bolts on 3 different occasions letting the motor completely cool down and then driving it again. Helping compress the warmed up gasket to the head.
I did this and it was successful but now my car won't go in reverse do yk what I could've did to cause that??
Sweet
Using the combo of RTV to hold the gasket in place set up then mount it to the engine. No more leaks. Mines hasnt leaked in years after that install.
Nice i like the dual gate hurst shifter it looks like the late 70s hurst olds would use amd the crome air cleaner that the 83 to 84 hurst have great car
Thank you! I bought the dual gate for overdrive just in time. Almost went with lightning rods but liked the simplicity of the dual gate.
Hey did you ever do a smog delete? If so I need your assistance
💯💯💯
Could you show me the power steering pump bolts
Thanks for the video....valve covers are leaking on my 307. Bolts are loose and I'm going to try tightening them before replacing the gaskets to see what happens. What year is your Cutlass, 84?
Thanks for watching! I hope just tightening the bolts will work for you! There are also gaskets out there with a steel core that help prevent over torquing and possible premature leaks. Its had to find new 307 valve covers or i would have switched mine out. My cutlass is a 1986. I bought it in 1997 and at the time it had the spoke hub cap covers LOL.
I need a passanger side valve cover the same as yours.. 2 bolts on top and 3 bolts on bottom.
@@michaelcaballero774 I havent been able to find any new online as i would have put new ones one myself. Perhaps ebay or you might be able to find a local warehouse that stores old engine blocks and parts. There is always heading to the junkyard too, atleast the 307 was pretty popular but i dont know how many of those 80's cars can still be found in the junkyard. Good luck!
@@oldsguysgarage - Why did u change the original?
Question for u i put another 307 back into my car wat wire goes to the alternator bracket right on top ? I sm haveing charging issues but have new battery alternator and alternator plug ? I see it in your video where does it come from to the bracket?
There is a ground wire that goes on top that comes out of the wiring harness that contains wires for cruise control module and other items. There is a red wire that comes from the battery that connects to the back of the alternator.
2:40 what does that hose do? I am trying to revive my fathers buick lesabre and I need to know what they do
The hose I grabbed right after the 2:40 mark goes to the brake booster. it connects to a metal tube that is pointing upwards. I have a 1986 Oldsmobile service manual. see if you can buy one! I bought mine 15 years ago so hopefully they are still around! Good luck and let me know if you have any other questions!!
@@oldsguysgarage Life saver
Where do you get the valve covers?
I just reused the old valve covers. I actually laid them on a flat surface and made sure they were flat. I used a hammer or a pliers where needed. I wish I could find new valve covers for the 307s too
How many bolts are on each valve cover? 5 or 10? My daily is a 87 Brougham with the 307 Vin Y. Im having a hard time finding new covers. Im on the 3rd set of valve cover gsskets in 3 years wich means almost 2k in shop repair. Next pair i get i want to install new covers also.
5 on these 307's. replacement valve covers for these 307s with only 5 holes are a tough find for sure. Try cork if rubber didnt work. You can also find some rubber gaskets on ebay that have a metal core which helps from over tightening. I glue them on with permatix black to the valve cover and then after glue sets up put the valve cover on the head. Flattening existing valve cover helps too. These are a bear for sure. i wish they had 10 bolts like on the older olds motors.
@@oldsguysgarage My second set was cork,they didnt even lasted 2 month. Its so frustrating. Im gonna see if i can find a set of valve covers and give it one more try with rubber steel core. Its just not reasonable. The Brougham was 1500$ and im about to have the 4th set of valve cover gaskets installed. Other than that the 307 is a great engine. It never let me down. I drove it up and down the eastcoast. Right now im in the Highlands of NC,steep hills,super curvey roads but shes doing great if you dont pay attention to the gasmileage. Im from Germany and for me gas is still cheap here,over there i would pay almost 12$/gallon and could never afford a Classic Cadillac. So god bless America.👌👌👌
@@karlgrill4665 Best of luck. I know from experience it can be frustrating! Check them and slightly tighten them down through various heat cycles, that may help.
Bro these are a headache I’m trying to find chrome valve covers for my 86 regal limited which is 5.0l 307 Oldsmobile engine and all I find is small block Chevy 307 chrome covers will those fit our 307 oldmobile ? The chrome ones only use 4 bolts bolts vs our 5 even tho our valve cover has a real bolt fake bolt space does that make sense lol
Hi I have a 1977 cutlass supreme trying to find out what size motor I have in there trying to change the valve covers and gaskets The valve covers I have on there now have two holes on top and three holes on bottom how can I determine the motor size on that vehicle ?
Great Question, First of all if the head casting is a number it is a small block, if it is a letter it is a big block. Above the water pump there is a code stamped into a ledge. Write that code down and search the web for Olds FAQS.com, commonly found under oldsjunction.com and look up what size motor you have. my guess is a 350 if its original but it worth checking for sure!
I was told it’s a 350 but I ordered the valve covers for a Oldsmobile cutlass supreme 350 motor and it came with five holes on top five holes on bottom same with the gasket can’t seem to find any valve covers or gaskets with two holes on top three on the bottom please help!!!
@@dontegarcia1999 You wont be able to find those. I looked and looked. If you use rubber use the black make a gasket between the gasket and cover only and fill the non used holes. If you go with cork, Id still glue them to valve cover and let them do their thing pressed up against the head. Good luck!
Thanks for your help 👍
That passenger side back bottom bolt is hard to reach
yes it is! have to find the right combo of socket and or socket wrench. having the bolt threaded thought cover and gasket before placement helps, atleast right there.
What a mess I love Oldsmobiles but I hate to g-bodies the f*** was they thinking about