Prop wont fit WTF???

7355hpchry

Seaman
Joined
Oct 29, 2008
Messages
59
Still working on my1980 DT65 Two, YES 2 cylinder. The prop it came with will not fit without totally destroying the prop shaft seal. If I tighten up the prop nut, the bushing will rip the brand new prop shaft seal to shreds. Also There is a 1/4" gap between the lower unit housing and the prop. This will allow the exhaust to leak out IN FRONT OF THE BLADES and cause MASSIVE CAVITATION.

The guy that re-sealed the lower unit said the propeller shaft bushing/washer was wrong. I called Brown Point and gave them the Model and serial # and they sent me a new bushing. They said this was the ONLY one listed. It is the same one that is on the motor now WTF?????? Is the 1980 Lower Unit different than the 1985 and up?????

Can the bushing I have be modified to fit the older motor??? There is a lip on the bushing, facing the seal, that has four slots in it. It is this lip that is mashing into the prop shaft seal and will shred the seal if I tighten the nut and spin the prop.
 

7355hpchry

Seaman
Joined
Oct 29, 2008
Messages
59
Re: Prop wont fit WTF???

A few more questions, is it possible the shop that re-sealed the lower unit incorrectly installed the prop shaft seal? Is the garter spring on the prop shaft seal supposed to face the prop? I don't want to keep this motor so I'm not interested in getting a shop manual. I just want to make sure I'm not screwing the person that buys the motor.
 

slasmith1

Lieutenant Junior Grade
Joined
Dec 2, 2008
Messages
1,028
Re: Prop wont fit WTF???

do you have the thrust washer correctly installed?
 

7355hpchry

Seaman
Joined
Oct 29, 2008
Messages
59
Re: Prop wont fit WTF???

do you have the thrust washer correctly installed?

What thrust washer??? On my motor, there is the bushing first, then the prop,then the spacer, a washer with tabs and finally the prop nut.

I cant find a accurate picture of the propeller stop bushing. How can I add a picture to this post? I'll take a picture of the Bushing and the problems it is causing.

I'm really starting to think the shop that did the re-seal incorrectly installed the prop shaft oil seal.
 

7355hpchry

Seaman
Joined
Oct 29, 2008
Messages
59
Re: Prop wont fit WTF???

Well here is an update for the clueless lot that viewed with no reply.The shop that re-sealed the lower unit was inept. They failed to research the year and "ASSUMED" it was a mid 80's. They installed 2 prop shaft seals back to back. The real seal faced the gear case, the front seal faced the prop. The front seal was not used in PRE 1985 Suzuki lower units.

The incorrectly installed seal did not allow the the propeller stop bushing to seat properly. I found the mistake by carefully studying the exploded parts view at Browns Point Marine. I also found I forum WITH FAR MORE KNOWLEDGEABLE POSTERS that helped diagnose the problem. I removed the front seal and the prop fit perfectly. I ran the motor in a barrel for 20 minutes. I then pulled the prop to look at the seal, it was perfect.

No offense to this group but I could not get a lick of help here. Sorry to say, for older Suzuki owners this forum is very poor. The address of the GOOD Suzuki Forum is HERE You will find more help with the older
Suzuki's there.

BTW when I say "Facing" on a seal I'm referring to the garter spring side.
 

Whoopbass

Senior Chief Petty Officer
Joined
Jun 29, 2006
Messages
653
Re: Prop wont fit WTF???

I read your thread on the other board and it looks like you solved the problem yourself. The pics you provided may have possibly helped if you would have posted them here.
Your problem was unique and hard to diagnose since a mechanic screwed it up.
I hope you go raise heck with the shop like it appears your capable of.

This section of the forum is a little slow but this site is by far superior to any marine site on the web.

Thanks for the update.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Prop wont fit WTF???

also the JustinTime, is an active member here. there are not many people familiar with the 1980 Suzuki, as they were not a popular motor.
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Prop wont fit WTF???

the first reply to this post did ask if the tech correctly instaled the parts.
apperantly he was correct.
but when you buy a franken motor from e-bay you get exactly what you paid for.
same if you take your motor to a shop that is not an authorized dealer using factory parts and service literature you get exactly what you paid for.
I dont work on suzukis much anymore but did spend 5 years at a suzuki dealership and was a factory trained certified suzuki tech.
but once you start dealing with ebay stuff and non-factory trained personell and non-factory parts then all bets are off.
I cant tell you how many crossflow johnsons and the odd looper in both V4 and V6 I have seen smoked due to the use of a one year later model gearcase, the later model shaft was about 3/8ths of an inch to long,the unit would actually bolt up but the shaft was pushed down and the crank pushed up with excessive preload, usually took a few hours for a catastrophic powerhead or gearcase failure.
then a TRAINED tech usually got it and had to figgure out what the last monkey did.
so dont knock the lack of responses, you got what you needed with the information provided.
gearcase/powerhead swaps happen, most trained techs will spot it on dissasembly. most untrained backyardigans simply wont.
best I remember though on your unit if you ever had to replace the bearing carrier the new carrier assy uses 2 seals.
its called running engineering changes and FACTORY sponsered shops actually get TECHNICAL bullitens and interchange information to aid in the correct diagnoses and repair of the product.
 

7355hpchry

Seaman
Joined
Oct 29, 2008
Messages
59
Re: Prop wont fit WTF???

I read your thread on the other board and it looks like you solved the problem yourself. The pics you provided may have possibly helped if you would have posted them here.
Your problem was unique and hard to diagnose since a mechanic screwed it up.
I hope you go raise heck with the shop like it appears your capable of.

This section of the forum is a little slow but this site is by far superior to any marine site on the web.

Thanks for the update.

I did ask how to post pics on this board, I never got a response. On the other board I just "Upload" a picture off my computer. This board asks for a web address for the picture????? I am a clueless idiot when it comes to Internet / forum tricks.

I lit that shop up, and they refunded the repair cost.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Prop wont fit WTF???

I lit that shop up, and they refunded the repair cost.

Wonderful, who are you going to bless with your business next.

Read rodbolts reply, several times. Then think about it for a while.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Prop wont fit WTF???

What Don S said.
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Prop wont fit WTF???

7355
I am glad you got a refund.
I havent a clue how to upload a picture either,nor do I own a digital camera.
the wife has one but I am not allowed to use it :).
the USN spent 6 years training me in electronics yet I hate technology,other than EFI.
I did not intend to sound mean but over the past 4 years or so I have seen over 30 ebay purchased motors,the last was just before thanksgiving.
all were junk engines that some folks got their money back and some were just SOL.
last one was an E-bay 1991 yamaha 115.
ran well,was shipped with most the oil injection missing.
the one minor drawback was the wristpin knock on #2 cylinder.
further investigation revealed a loose pin bearing.
given the extreme rust on the tiller and shift shaft I told the guy no way am I gonna touch it.
could have been an honest mistake.
last summer I had a customer bring in an Ebay F225 with a drive shaft engine oil leak.
computer printout shipped with the engine showed it only had 350 some odd hours.
while removing the power head I also noticed burn marks,then I noticed the main wire harness and the vapor gas recovery hoses were for a later model F225 than this engine.
found extreme wear on the crankshaft oil pump seal surface.
made a couple calls to yamaha with some numbers.
found the ECU was 4 years newer than the engine,also found this engine had a gearcase replacement under warrenty at about 2500 hours in 2005.
luckily the customer paid us for the speedi sleeve repair to the shaft and the seller gave him is 3800 dollars back.
but I am glad its working out for you,hopefully you will have a very nice motor.
the 2cyl 40,50 and 60 suzukis were very durable engines they just shake a lot at idle due to a very large bore two cyl design.
just always beaware not all folks are honest.
I cant tell you how many customers,in both the automotive and marine fields, have asked me to patch it enough to resell over the years.
I learned very quickly,in my teens, not to do it.
years ago a very good shop teacher at Hogan High in Vallejo CA asked me,son its their money and your reputation,which is worth more to you?
 

7355hpchry

Seaman
Joined
Oct 29, 2008
Messages
59
Re: Prop wont fit WTF???

Thanks rodbolt, point well taken. I got this motor form my next door neighbor. It was a take-off from his pontoon boat. It was leaking oil from the lower unit so he took it to a shop near him.

Unfortunately for all involved it was definitely not a Suzuki Authorized service center. The shop owner even admitted he had only worked on a handful of Suzuki motors in his life. I think that is why he offered the refund very quickly. The serial number is a 1980 number. All the pieces and parts are 1980.

My biggest mistake in all this, was under estimating the popularity of this old motor. I figured there were tons of these motors out there, and LOTS of people were familiar with them. At the time of my "Clueless lot" post. This thread had received over 100 views with one post other than mine. Not 5 minutes after I hit submit post on the "clueless lot" reply, I was HAMMERED by WAIT A MINUTE POSTS. Sorry that post was taken as an insult by so many.

It only took less than an hour to get a reply on the other board, and about 2hrs to figure out the problem. If I decide not to sell the motor I'll get a factory service manual for it from Browns Point. If I cant do the repair myself, it will absolutely, for sure, be taken to a Suzuki repair shop.

If nothing else this thread should make rodbolts point about FACTORY AUTHORIZED repairs the best advise of all.
 
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