|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
11-17-2021, 07:43 PM | #1 |
Senior Member
Join Date: May 2010
Posts: 562
|
newly rebuilt and a knock
just finished installing my rebuilt motor and upon starting i have a knock. the motor was test run by the rebuilder and he said it was fine with no noise. i had to remove the distributor in order to install the ignition lock cable and when i went to take the distributor out it like "sprang" back into the block. i rotated the motor slightly with the crank and it came out.. i put the cable in and reinstalled it with the rotor facing the same place as when i removed it. i started the motor and i have a knock. the rebuilder says it was fine when it left his place and i must of done something like maybe the timing was off. i am confused because if i took the distributor out with the rotor facing a certain direction and reinstalled it in the same place how would the timing have changed. any suggestions i am super stressed and dont know what to do.
|
11-17-2021, 07:46 PM | #2 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 5,948
|
Re: newly rebuilt and a knock
The timing won't change. What is knocking? Is the fan belt off?
|
Sponsored Links (Register now to hide all advertisements) |
|
11-17-2021, 07:46 PM | #3 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
motor is complete and assembled
|
11-17-2021, 07:48 PM | #4 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
also i had to push down on the distributor shaft in order to get the distributor to go all the way down into the head
|
11-17-2021, 07:57 PM | #5 |
Senior Member
Join Date: Jul 2015
Location: SouthWest Michigan
Posts: 363
|
Re: newly rebuilt and a knock
Bingo
Should not have to push down on the distributor to get it in better be checking what you have going on down in that little hole Sent from my iPhone using Tapatalk |
11-17-2021, 07:59 PM | #6 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
Sponsored Links (Register now to hide all advertisements)
|
11-17-2021, 08:00 PM | #7 |
Senior Member
Join Date: May 2010
Location: Southern Maine
Posts: 1,494
|
Re: newly rebuilt and a knock
I had a problem with a new repo front crank pulley hitting the front engine mounting yoke. Sounded real bad The yoke left marks on the spokes of the pulley.
|
11-17-2021, 08:01 PM | #8 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
that all appears to be clear
|
11-17-2021, 08:04 PM | #9 |
Senior Member
Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 1,371
|
Re: newly rebuilt and a knock
Something doesn't sound right with your drive gear spring under the valve cover.
__________________
"The more things change, the more they stay the same." |
11-17-2021, 08:08 PM | #10 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
not familiar with that part i think there is a spring that the oil pump floats on and the rebuilder says that the distributor was pulled down by that spring
|
11-17-2021, 08:08 PM | #11 |
Senior Member
Join Date: Sep 2019
Location: Fort Gratiot, Michigan
Posts: 2,296
|
Re: newly rebuilt and a knock
Take it back to the mechanic that rebuilt it!
|
11-17-2021, 08:09 PM | #12 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
good idea but he is rather far and i dont want to have to take the motor out
|
11-17-2021, 08:36 PM | #13 | |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,774
|
Re: newly rebuilt and a knock
Quote:
And remember, you catch more flies with honey than vinegar! |
|
11-17-2021, 08:36 PM | #14 |
Senior Member
Join Date: Jan 2020
Location: SF Bay Area
Posts: 1,044
|
Re: newly rebuilt and a knock
True - I had to turn mine down on a lathe just a couple of thou to get it to mate well with the distributor.
__________________
JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan |
11-17-2021, 08:37 PM | #15 | |
Senior Member
Join Date: Jan 2020
Location: SF Bay Area
Posts: 1,044
|
Re: newly rebuilt and a knock
Quote:
JayJay
__________________
JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan |
|
11-17-2021, 08:38 PM | #16 |
Senior Member
Join Date: Aug 2021
Location: alberta canada
Posts: 585
|
Re: newly rebuilt and a knock
i remember back about 50 years, when i said to my dad, i should have a mechanic work on this for me, my dad said to me, "you may as well fix it yourself because you will likely have to redo the work anyway.
i hate when someone gets told "it was fine when it left here" the answer should be "ill have a look at it for you". it would make me want to deliver it back through their front window. sorry for the rant. knocks are horrible things to diagnose. stethoscope or a pc of hardwood to your ear to try to narrow down the area it is in. sorry i cant help more.
__________________
old ugly my old father-in-law told me. "listen close when people tell you how to do stuff they may know something. then do it the way you want." |
11-17-2021, 08:38 PM | #17 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
returning the motor to the builder before i check out other options would not be practical
|
11-17-2021, 08:41 PM | #18 |
Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,714
|
Re: newly rebuilt and a knock
I'd be looking at the fit of the lower distributor shaft.
|
11-17-2021, 08:42 PM | #19 |
Senior Member
Join Date: May 2010
Posts: 562
|
Re: newly rebuilt and a knock
how would that cause a knock. if the upper shaft was jumping out of the bottom shaft would there not be a misfire
|
11-17-2021, 08:50 PM | #20 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 5,948
|
Re: newly rebuilt and a knock
Anything moving can knock. You can pinpoint a knock with a mecanic's stethoscope. Is the oil pump working?
|
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|