sticky valve, burnt valve, is what he said.....

[rbezdon]

Re: sticky valve, burnt valve, is what he said.....

I dont know about that Rodbolt. I saw a test in another post where (riser must be removed) the riser is inverted and filled the outer jackets with fluid (some kind of thin oil I think) and then inspected for the liquid to have penetrated into the exhaust chambers. Seemed to be a pretty good (logical) test to me.

 

[f_inscreenname]

Re: sticky valve, burnt valve, is what he said.....

I hope you boat on a small lake because someone will be towing you in soon. A cracked block / head just below the cylinder is giving you problems..... Then we are going to spend a bunch of money and time on patching up what is the cheapest motor on the planet? I bet if you double what you spend on fixing the head you could have a new Chevy 350. Start looking for a motor.Please don't take me wrong I am not being flip about it. I am just stating a fact. Hell if you bought a junk yard motor with a desent pair of heads ($300.00), a rebuild manual ($29) and I could get you a master rebuild kit for under $300 and together you could have a 300hp Chevy 350. That would be around $600.00 total. Again these motors a so cheap so easy to work on.

 

[86bayliner]

Re: sticky valve, burnt valve, is what he said.....

whats your idea of cheap? How much does a new engine cost, they look to be in the range of about 5000 if im not mistaking. <br /><br />thanks for yall's thoughts, but i think im gonna take my broke a$$ out there and rip the valve cover off and start learning, i might get lucky. After all it was moving 40+ not more than three weeks ago. <br /><br />The mechanic i used showed me a head that he had on his shelf, so it made a lot since to me.<br />Im praying on a little lube around the guide and maybe a whack with the hammer should fix the "sticky" part. if not than im just gonna sell the darn thing. And start over, I see now why i got a good deal on the boat and trailer. You live you learn. <br /><br /><br />------------------------------------------------<br />86bayliner<br />Norcross, GA

 

[rodbolt]

Re: sticky valve, burnt valve, is what he said.....

vatter41<br /> a drip test is not sufficeint. it has to be under pressure to tell. if it leaks with the drip test its obvious as soon as you pull the riser cause its way past leaking, its pouring.<br /> no good way to pressurize the risers, unless they are almost new with no corrosion.

 

[lowshovel1]

Re: sticky valve, burnt valve, is what he said.....

"Hell if you bought a junk yard motor with a desent pair of heads ($300.00), a rebuild manual ($29) and I could get you a master rebuild kit for under $300 and together you could have a 300hp Chevy 350. That would be around $600.00 TOTAL" I'm not saying it can't be done but 600 bucks is a little optamistic.I'm in the prosess of finishing my 350----have over twice that into it,just the machine shop got me for 600(with cam bearings installed} ----By the way I checked out your link to your boat-- great job

 

[f_inscreenname]

Re: sticky valve, burnt valve, is what he said.....

Thanks lowshovel1. <br /> True that is low but possible. Would I do it that cheap? Probably not. My point was not to sink a ton of money in a motor when it is in bad shape to begin with (cracks in the block). Time to start over. <br />"just the machine shop got me for 600(with cam bearings installed)"<br />Local machine shop dipped and fluxed the block. Honed all cylinders to the piston heads, all decks, cam bearings, and turned the crank for 400.00. I also had everything speed balanced for a extra 125.00.but Most people don't go that far. For that matter I know a few guys that will take a junk yard truck motor. Change the freeze plugs and drop it in and run it.

 

[86bayliner]

Re: sticky valve, burnt valve, is what he said.....

oh thank you for your help, im sure i'll have many more questions. as described in other posts, Ive decided to put a new lifter in because i had one found to be worn that was the issue. im gonna Put the sob back together turn it over see what happens, im gonna attempt to hit a few more waves, while i look for another motor, because i know my cam is a bit worn but as i looked through the lifter bore, and put my finger on the lobe, it did feel a big bump. so We'll see. Its not gonna hurt anything at this point, it was a five dsllar lifter. thank you for all your help<br /><br />------------------------------------<br />86bayliner

 

[rbezdon]

Re: sticky valve, burnt valve, is what he said.....

Change the oil and filter too!!!!! Those metel shavings from the lifter and cam are in there somewhere and YES it will hurt something if you run it this way. Read the response on your other post about the guy who replaced the lifter and run the engine 5 minutes before he ruined the bearings too. If you throw a rod or something , you could have a much more dangerous failure than a miss in a cylinder!!

 

[lowshovel1]

Re: sticky valve, burnt valve, is what he said.....

86 bayliner, your pizzin in the wind! if your takin engine down that far, at least get a another cam(new or used) ---install NEW set of lifters--check push rods on glass to insure they are strait--put it together-- adjust valves--set timing and go boating,gaskets and all with used cam--less than 200 $

 

[86bayliner]

Re: sticky valve, burnt valve, is what he said.....

so it is ok to use a (used) cam<br /><br />because new ones are like 331.00 then they wanted 20$ a lifter, after i found that i can get them for $5.oo a lifter,<br /><br />i think i'm still gonna be looking for another motor, but ill check into the used cam<br /><br /><br />thanks,<br /><br />86bayliner

 

[lowshovel1]

Re: sticky valve, burnt valve, is what he said.....

just make sure cam is within specs

 

[86bayliner]

Re: sticky valve, burnt valve, is what he said.....

10-4

 

[rbezdon]

Re: sticky valve, burnt valve, is what he said.....

Order one from comp cams. I got mine $212 including a complete set of lifters. Order part number 12-206-2 with the lifter kit.

 

[86bayliner]

Re: sticky valve, burnt valve, is what he said.....

too bad i cant put my 1992 Ford Explorer engine in my boar, but its only a v6. ??But it runs.<br /><br /><br />-----------------------------------------<br />86bayliner

 

[f_inscreenname]

Re: sticky valve, burnt valve, is what he said.....

Originally posted by 86bayliner:<br /> too bad i cant put my 1992 Ford Explorer engine in my boar, but its only a v6. ??But it runs.<br /><br /><br />-----------------------------------------<br />86bayliner

You can but it would cost more then to build a new chevy. Cam and lifter set at Northern Auto Parts is $119.00 Here is a link---<br /> http://www.northernautoparts.com/ProductDetail.cfm?ProductId=536

 

[f_inscreenname]

Re: sticky valve, burnt valve, is what he said.....

Here is a link for the rebuild kit (comes with a cam and a bunch of other stuff)for $169.00<br /> http://www.naparts.com/ProductModelDetail.cfm?ProductModelId=380 <br /> You may want to get it even if you only do the cam. It will have all the gaskets and stuff you need without buying them separately for less money then a cam and head gaskets alone.

 

[deputydawg]

Re: sticky valve, burnt valve, is what he said.....

If it turns out to be a sticky valve, it could be an easy fix. I have seen valves that will get a little carbon and junk on the stem and stick every 3 or 4 strokes only. While it is running at a little over idle speed slowly fog transmission fluid down the carb. This will polish the valve stems and remove carbon deposits from valves. <br />Sounds like you have your problem isolated though. <br />Used Chevy blocks and heads are a dime a dozen. Should be easy to find one fairly cheap and rebuild for a few hundred if done yourself.

 

[steve n carol]

Re: sticky valve, burnt valve, is what he said.....

86 Bayliner,<br /> In the 70's, when I had a full head of hair, I ran across a publication at the auto parts store called "how to hot rod the Small Block Chevy". <br />While you may not be interested in this, and perhaps it dosen't quite fit your circumstance, It would introduce you to the workings of this type of engine. It's not a complicated read, dosen't get real technical and has a lot of pictures. These are not in print anymore....but the basics are the same and you can get this on on E-bay! <br /> As far as replacing a cam?? My 16 year old did this, at my house, (cause I had the tools), while I was on vacation, w/o a book. I remember comming home and the garage door open, his truck, with the GM 350 in it, that he put in with my supervision. (This is th kid who 6 months prior didn't know which way to 'spin' off the oil filter). Had his truck half in the garage...He was sitting on the washing machine, about 6:00 pm, w/ a stymied look on his face..."where were you? I can't get this distribuer in?"<br /> Ahh.. that was great afternoon. He had it all back together save the distributer. <br /><br /> The hardest part is access. <br /><br /> So... <br /> I am SURE, all of us here are pulling for you...after all, 99% of us are DIY'ers. That's most of what this site is about....sl

 

[86bayliner]

Re: sticky valve, burnt valve, is what he said.....

well i'll have to agree with you. i had a little trouble getting my distributor back in, but i got it, fired it up. Didnt sound right, pulled #1 spark plug, found TDC, looked at the rotor, found the number #1 terminal, started my firing order. <br />Cranked it up and, voilah. I had put the distributor in a little off point.<br /> Well when I was younger, I worked on a fourwheeler, motorcyle,gokart,scooter, etc. It certainly had to take interest, and what kept me interested was knowing mom wasnt gonna pay anybody to fix it, so I had to do it myself, if i wanted to have any fun. <br /> And I have changed out fuel injectors in my f510 before, that was about as far into the engine as ive been. Then, I ran into this boat problem. <br />Thanks goes , i would say to the majority of you on this site and this site for even being here.<br /> And a few others in my local town who helped explain some things to me. I feel like a new person, a person that knows. Still have lots left to learn though.<br /> As for my boat engine, I decided to put this $5.00 lifter back in the block, so that i could get a few more runs while i look for a 350 v8, dont know how long it'll last, because of the cam. <br />The boat sounds great though ,no more POPPING SOUND for now anyway and im taking her out tomm. Let you know how long it lasts me. <br /><br /><br />thanks <br /><br />86bayliner<br />Norcross, GA 30071

 

[rbezdon]

Re: sticky valve, burnt valve, is what he said.....

I repeat an above post, what ever you do DON"T RUN WITHOUT CHANGING THE OIL TOO!!!!!! (and filter)<br /><br />Change the oil and filter too!!!!! Those metel shavings from the lifter and cam are in there somewhere and YES it will hurt something if you run it this way. Read the response on your other post about the guy who replaced the lifter and run the engine 5 minutes before he ruined the bearings too. If you throw a rod or something , you could have a much more dangerous failure than a miss in a cylinder!!