evinrude 150 clicking noise /help

[Benny1963]

dont know if i should have started new .tread
have been klooking for ticking noise for two days
remoned lower and ran motor with hose on pickup still ticking have totaly
read clymer manual 6 or 8 times clicking noise sounds like its in reeds or in top of motor .havent pulled fly wheel . havent pulled intake
rotated motor over with heads off and pushed on pistons they all seamed tight .at this point im ready to give up looking for direction on what steps to take next on finding prob power head is two seasons old has 6 new 030
wiescos in it runs great has great comp. my fear is a bearing prob
i am scared to pull power head and attempt repair . but have been building
chevy motor s for a very long time so i have tools and mech ability
but this clymer manual is junk am looking for what steps to take to make sure its not something else. before i attempt repair .also if i have to i guess i will
need full gasket set and rings and bearings.if any one could give me some direction from here i would be greatfull power head has little use
and i dont have money to buy a new motor.
and if i buy older motor it may have similiar probs in near future.
becaus compression teat doesnt mean motor is strong in the rotating ***.
and dont want two motors with weak rotating ***.
i would rather bite the bullet and make repairs to this motor .it runs ex. but the ticking noise is agrevating as hell. but it runs great . please
help anyone with steps from here i will follow . but its not lower unit.
thank once again bennyb .merry christmas

 

[flabum]

Re: evinrude 150 clicking noise /help

Does the clicking stay consistant with the engine RPM? How loud is it?

If it's a rattle, then it could be the exhaust housing. With the L/U off, take a broom stick and put it against the inside of the inner housing and see if you can move it.

You said the lower unit was a bear to get off and took quite a bit of pressure. The only bearing that would affect is the bottom crankshaft bearing. The bottom crankshaft bearing is a ball bearing style, the rest of them are roller style and would not be affected by latteral hammering. With enough hammering, the bottom ball bearing can crack one of it's races. That would give you a very rapid click. You might be able to half-butt check this by grabbing the flywheel and seeing if you can move it up and down slightly...there should be no more than .005 movement up and down. If you feel any measurable up and down movement, then I would bet on the bottom crank bearing.

Another thing that can cause a "click" would be piston slap. Motors with a lot of use will develop this as will a motor with a seized wrist pin bearing. This is difficult to diagnose and is rare.

Reeds don't generally make noise unless they are loose. If you had reed problems you would normally also have an idle problem or a cylinder running lean.

The flywheel could be loose, check the nut torque. It is also possible something came loose on the stator or timer base causing the noise. You can pop the flywheel for a look. If the noise sound op high, I would do this first. Check for side to side play on the top crankshaft bearing by trying to move the crankshaft side to side. There should be almost zero play there. Top bearing have been known to fail due to lack of lubrication.

Other possibilities exist such as a loose connecting rod, broken rings or broken middle bearing.

 

[Benny1963]

Re: evinrude 150 clicking noise /help

hey flaubam its high on motor .checked crankshft play its solid up and down and side ways this powerhead has les than 100 hrs .there was alittle movement side to side on all pistons but very slight . it has 6 sleeve and fres 030 pistons im trying to diagnose problem that i can without pulling powerhead as i have never done it and it seen some salt water use .
do you think i should pull flywheel next and then pull reeds will the flywheel show slight rubbing if it is there,have you done any evinrude 6 cyl rebuilds
and is it possible that i can do with gaskets and bearing and so forth and save pistons and boreing ther perfect and the cyl walls still have cross hatching if it a bearing could i change just the bearings gaskets and rings
thank you very much for helping on this .
benny b

 

[flabum]

Re: evinrude 150 clicking noise /help

I've only done a few hundred V-6's. I worked for a huge dealer in Miami for ten years. I'd be doing the easy stuff first. Pul; the flywheel....look for anything loose or rubbing. It's strange you don't feel it by rolling it over by hand. Does the clicking stay consistant with the engine RPM? How loud is it?

 

[Benny1963]

Re: evinrude 150 clicking noise /help

hey flaubam the noise goes away at higher rpm but may be due tto engine noise at higher rpm iits not a knock its a ticking noise up high im going to pull flywheel and inspect stator .can i pull upper bearing cover to check bearing
the tick is comparable to a lifter on a car motor that is slightly loose tick tick tick tick ,consistant till 3000 rpms . at idle its like tick tick ticktick not overly loud but like a bad lifter on car trying to tear down everything i can and check
before i have to step up and split case and start checking bearings .. maybe i should take to out board repair service that iknow a fellow at and start it up with lower off and let him listen .but should i pull flywheel first and check upper bearing provided it can be gotten to with out splitting crank may have to reassemble and sell running , but be honest about prob it runs really good
thanks bennyb

 

[Benny1963]

Re: evinrude 150 clicking noise /help

could bad timing make the ticking sound had it link and sink and timed
beforathis prob and hasnt been changed will pull flywheel tommorrow and check is there anything i should look for under flywheel i will check timing as well useing joe reeves test

 

[DJ]

Re: evinrude 150 clicking noise /help

If anything has been rubbing, it should be obvious.

 

[Benny1963]

Re: evinrude 150 clicking noise /help

thank you dj dou yall think its possible that if i have one bad rod bearing that ican pullthat one piston repair rod bearig and put back togethr with fresh rings and gasket due to it low hours and excellent cyl walls
thanks benny b

 

[DJ]

Re: evinrude 150 clicking noise /help

Benny,

One thing at a time. Go for the easy stuff first. Under the flywheel is where I'd look first.

Don't get ahead of yourself.

 

[Benny1963]

Re: evinrude 150 clicking noise /help

thank you iwill pull tommorrow do you think ishould pull carbs and check reeds
can you pill intake without pulling power head thanks .
its a clicking noise not a knock and not very loud
thanks bennyb

 

[flabum]

Re: evinrude 150 clicking noise /help

The reeds can be seen by pulling the carbs, but not everything about them can be seen. The best way to check them is by pulling the intake manifold as well. This can be done without pulling the powerhead. And with the intake off, you can get a half butt veiw of the rods.

Let's do the flywheel first

 

[grid]

Re: evinrude 150 clicking noise /help

Interesting thing about Wiseco pistons is that they have different boring techniques required. If you got one older piston with five new ones, you may have excessive clearance if all 6 were bored to the new specs. I had this problem a couple of years ago and hoped I'd never be faced with it again. I don't know that it applies to you; just a thought.

 

[Benny1963]

Re: evinrude 150 clicking noise /help

hey guys called the boat mech that i use and he said it was a waste of time to pull fly wheel that it was probaly a main or wristpin bearing and that if i took off power head he wanted 600$ AND PARTS TO repair and that all bearings would have to be replaced he said that i couldnt realign
crank end of rod without fixture . and that he thoght there was no way it was a magnet this sounds like bull to me . bad part is he is the one that built
this power head and claims he uses new bearings on all his rebuilds
and that a full set of bearings is 400 to 600 dollars what do yall think

 

[flabum]

Re: evinrude 150 clicking noise /help

$600 is a lot of money if he is wrong. Pulling the flywheel and intake costs nearly nothing but time and you can get a half decent look inside the engine with the intake off. He may be right, but if you can turn a wrench, it would be worth eliminating all other possibilties.

For all we know, a staotr bolt cold have backed out.

in one of your earlier threads, you mentioned a Screehing noise. That very well could be a crank bearing.

 

[Benny1963]

Re: evinrude 150 clicking noise /help

yes flaubam it squeeled one time awhile back kind of when this started
havent pulled flywheel yet but im going to then the intake .
if i cant find anything obvious then iwill go one step further.whatever that may be . the motor runs verywell i could put lower back on and sell.but i would have to be honest about the prob .and the value of the motor will decline . and there barely worth anything in my area now.hoping if its internal i can find damage and repair provided crank or piston is not damaged
i inspected the pistons when heads were off push and pulled and side to side
must have missed it you seem to know youre stuff its a shame ya dont live in south louisiana.thanks for keeping up with this thread.were do ya live its not on your profile .if your covert i totaly understand .
thanks Bennyb

 

[flabum]

Re: evinrude 150 clicking noise /help

I'm in Fort Lauderdale, Fla. Have been a marine mechanic for 25 years. I worked for a very large Lemmonrude dealership for 10 years, Have certs in OMC, Evinrude, Mercruiser, Volvo, Detroit, Cat and Cummins. Been doing mostly big stuff lately.

I am a firm believer in saving money and helping people save money, Your mechanic may be right on the money, but sometimes a noise can be something that only cost you a bolt.

 

[Benny1963]

Re: evinrude 150 clicking noise /help

ive just been bitten by the boat bug in the last couple of years have been
drag racing off and on for years ive built quite a few small and big block chevs from mild to wild but the outboards are new to me.going to check the obvious first and then will repost
thanks and merry christmas
BennyB

 

[flabum]

Re: evinrude 150 clicking noise /help

Two strokes are easy once you know them.

I used to drag race a '73 Nova running a Big Block with tons of bottom torque..... they hated me at the gate. The Ford 9 inch had a tough time with it too,,,,,,, I'd beat them every time if my RT was fast enough, but if i lagged, they would get me at the end of the track.

 

[Benny1963]

Re: evinrude 150 clicking noise /help

yes sounds like it ran
i currently have a vega with a 9inch its street legal runs on pump gas
its 4 linked but has full interior im running a 406 smallblock full roller setup
trickflow heads about 540 hp with a 125 hp shot off the transbreak
runs 10.10 on motor around 950s on bottle and break
i used to own a 71 nova with 030 454 it ran 12 70s with street tires
and hydrolic cam 12 bolt with373s
stay in touch or send me pm sometime and well get on the net thanks for your input i have been on iboats almost daily for the last year boat wont quit breaking lol
bennyb

 

[flabum]

Re: evinrude 150 clicking noise /help

BOAT ( Bring Over Another Thousand) used to be spelled that way, now it's BOATT: Bring Over Another Ten Thousand