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  1. Dave15

    Engine swap

    Hello there, i own a '86 c20 with 350cui 165hp and a th400 trans.... now i just got an offer for a 350cui 4 bolt 300hp boat engine with adjusted edelbrock carb. is it technically posible to change it? i know i definitely have to change the cams due to the fact that a boat engine has other...
  2. Dave15

    Rough and shaking 350 after changing spark plugs

    sooo, after a few drives the engine shake is completely gone :pepper: i massive, massive, super massive thank you to all of you providing me with possible solutions and ideas:party33:
  3. Dave15

    TH400 drive off and shift problems/weird acting

    Hi guys and girls, my TH400 is showing a strange behavior, since 2 days when i come to a stop at a for eg. traffic light and i want to go i hit the gas like always and there is a 50:50 chance that it wont instantly go forward, takes a few seconds and little more RPM than it will move, its not...
  4. Dave15

    Stock ´86 C20 350cui octane

    ran 15 gallons of the 93 soup threw the engine and must say it is a wise choice, much smoother idle. hope my truck feels honored. this stuff costs 6,80 $ per gal. :boxed:
  5. Dave15

    Stock ´86 C20 350cui octane

    Hello Guys n Girls does anybody know if its "ok" to fill up my old lady with 93 octane? reason why i am asking is because here in europe we have the 95 octane (in USA its called 91) and we have the 98 octane (in USA named 93) the problem is that since april this year the 91 octane fuel is now...
  6. Dave15

    Rough and shaking 350 after changing spark plugs

    back with an update, after changing the vac hoses and the complete ignition system including gapping the sparks to the right gap i took the truck out for a little ride yesterday evening. drove it for about 15 miles without any issues and today i took it to work ~25 miles and it performes well...
  7. Dave15

    Rough and shaking 350 after changing spark plugs

    soooo.... here is a little Update. gapped the plugs to 0.045, new distributor cap, rotor and coil are in, the wires have been changed too and all the 5/32 hoses are fresh..... here some pics off the curiosity's i came across. fired it up and runs smooth as hell, couldn't manage to take it for...
  8. Dave15

    Rough and shaking 350 after changing spark plugs

    will give you the results hopefully tomorrow, parts should arrive in the morning
  9. Dave15

    Rough and shaking 350 after changing spark plugs

    i know, but i can imagine how this hose broke. i changed the fuel filter too, came to my mind when i saw this crack. it's realy close and could be the mystery but i will change the ignition parts anyway and tomorrow i will by a couple of feet vacuum hoses and change them too. the car is 37...
  10. Dave15

    Rough and shaking 350 after changing spark plugs

    well i threw an eye on the thermal vacuum switch and look at this little moth******** hitten under the fresh air snorkel those vacuum hoses are crunchy like cereals
  11. Dave15

    Rough and shaking 350 after changing spark plugs

    i think you messed up the infos with GTX63 post, i never mentioned something about the previous owner or sputter when wet :hmm: anyway, i realy appriciate all your input and possible suggested solutions. i ordered a new coil, distributer cap, rotor and wires and will change them, i also gonna...
  12. Dave15

    Rough and shaking 350 after changing spark plugs

    hi guys, back after a weekend break, unfortunately i had no time to try search for the issue. needed to spent some time with my lady. tomorrow i will check the gaps and vacuum lines again. i attached this pic, maby someone can tell me if these parts are a good quality. @410 John , right now i...
  13. Dave15

    Rough and shaking 350 after changing spark plugs

    hey guys, thanks for the new possible error sources, will check them today in the evening. took out that brown little.."thingi" and looked closely there is no metal contact or pin inside which would connect to the losse cable. related to newguy11 questions, all i fumbled around over the winter...
  14. Dave15

    Rough and shaking 350 after changing spark plugs

    will check the gaps tomorrow also the distributer, don't know when this has been changed last time since the truck got out of the USA 2019 and was brought to a barn in Germany for 3 years until i imported it to Austria. thiking of ordering a new cap and new wires from rockauto anyway. how can i...
  15. Dave15

    Rough and shaking 350 after changing spark plugs

    UPDATE: Reattached the vacuum line, fired it up and ran great after a few miles when the engine starts to get warm the problem comes back...... i read somewhere that the sparkplug gap for my truck should be 0.045... is it possible that the gap causing that problem because i looked at the plugs...
  16. Dave15

    Rough and shaking 350 after changing spark plugs

    by the way, anyone here who can tell my what that thing is for? saw that there is a cable attached on it which was loose, i think wasn't pinned in for a long time because its quite dirty in there
  17. Dave15

    Rough and shaking 350 after changing spark plugs

    Poped the hood and checked the lines starting from the canister and immediately saw this.... hopefully this is the reason for the rough engine
  18. Dave15

    Rough and shaking 350 after changing spark plugs

    thank you for the input so far guys, will check them on thursday when i have a day off... thankfully its not the daily driver car... i just need to figure out where those vacuum things are.... got quite some knowledge on engines but its basically European cars and Mustangs :hmm:
  19. Dave15

    Rough and shaking 350 after changing spark plugs

    Hello, this is my first post here. i own a 1986 c20 350 in pretty neat condition, i did a lot of rework on the truck this winter (spark plugs, engine-, axle-, and trans fluid change, all filters, new power steering pump) and took the truck out for a testride last week, first 30 miles went...
  20. Dave15

    Hello from Europe

    Hello guy, i am new to the forum and would like to introduce myself. i am David from Austria (Europe). i bought a 1986 c20 350 long bed last year and i can proudly say it is the first c20 longbed in my country :favorites37: well due to this fact there is just a little amount of people here...

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