|
|
#1
|
|||
|
|||
thump
my 150 1988 mercury runs great except sometimes when im running inreverse you her a thump or low bang from the engine its been doing this for about 3 years so when im backing up i take it slow cause then it dont do it dont know what it could be
changed my lower unit oil and no metal in ther i was thinking if it could be something with the trim since going in reverse it would be trying to pull the motor up just a thought
__________________
love to fish 
|
|
#2
05-03-2008, 12:05 PM
|
||||
|
||||
|
On a 50hp, I had 2 broken lower motor mounts that caused the sound you're describing.
With the motor in the straight down position and locked, pull back and forth about at the cavitation plate or torque adjustment to look for movement about where the lower tube of the yoke connects near the foot.
__________________
 '75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny Last edited by tsubaki; 05-03-2008 at 12:14 PM.
|
|
#3
05-03-2008, 01:28 PM
|
||||
|
||||
|
Mine used to make that noise I took it to a mechanic and he adjusted the shift linkage. No more noise after that.
__________________
1984 V-20 Center Console 1985 90 hp Merc. American by birth, Southern by the grace of GOD. Never let your hobby become a job but rather let you job become your hobby. http://www.wellcraftv20.com/gallery/turbine_doc_84_cc
|
|
#4
05-03-2008, 02:46 PM
|
|||
|
|||
|
shift linkage. sounds like it might not be engaged all the way hmm it only does it when you give it gas fast to back up
like if you let it idle or a little gas it seems to be ok
__________________
love to fish
|
|
#5
05-05-2008, 05:37 PM
|
||||
|
||||
|
Thats exactly what mine was doing. Idle backwards fine, add a little gas and THUMP, THUMP. Sounds like the transome is comming off.
It just wasn't engaging all the way. Let me know if this fixes it. 
__________________
1984 V-20 Center Console 1985 90 hp Merc. American by birth, Southern by the grace of GOD. Never let your hobby become a job but rather let you job become your hobby. http://www.wellcraftv20.com/gallery/turbine_doc_84_cc
|
|
#6
05-29-2008, 07:43 PM
|
|||
|
|||
|
turbinedoctor guess what thump thump thump GONE your right took it to the mech, and he adjusted the shift cable and now its gone phew that was easy you were right and guess what he didnt even charge me anglers marine in seabright nj the most honest and best i ever saw jimmy was the mechanic hes an older guy wouldnt even take a tip god bless him
__________________
love to fish
|
|
#7
05-30-2008, 06:53 AM
|
||||
|
||||
|
I keep telling people, find a good dealer that treats you right( there are fewer and fewer out there everyday), and patronize them as often as you can. If they can't stay in business, they won't be there when you need them. More and more boat dealers and shops are trying to turn into car dealer attitude shops, that doesn't get it in the boat world, only ends up pi$$ing people off. I'm glad you found a good, fair shop to take care of your boat, you should consider yourself very furtunate to have one nearby.
|
|
#8
05-30-2008, 06:57 AM
|
|||
|
|||
|
there the best of course when they work on your boat they get the rate but when you get it back it will be fixed and they only fix what is broke thats from my experiance , but when he didnt even charge me man i couldnt believe it there good and honest anglers marine in seabright nj but the only work on mercurys yeah buddy you know i was happy to get that prob, fixed
__________________
love to fish
|
|
#9
05-30-2008, 08:02 AM
|
||||
|
||||
|
Glad to hear your thump is gone. Now we need pictures in action!
__________________
1984 V-20 Center Console 1985 90 hp Merc. American by birth, Southern by the grace of GOD. Never let your hobby become a job but rather let you job become your hobby. http://www.wellcraftv20.com/gallery/turbine_doc_84_cc
|
 |
|
|
Linear Mode
