1.7 diesel owners..

Arlon · 16 February 2006, 19:41

I started a users group on yahoo for owners of 1.7 diesels. These engines have such limited distribution, it just made sense to try and get one place we could come for info and thought sharing on this specific engine. It is an engine specific group, not boat specific. If you have an interest in the 1.7 mercruiser diesel specifically, please post a message, Im, email or what ever and I will send you the link to the group. Arlon.

simmons0 · 24 February 2006, 21:27

I have a Solent 20 foot Rib with 1.7 dti inboard and alpha drive, new 2004, with 250 hours use. I should be pleased to receive details of the User Group.

David Simmons

bogib · 24 February 2006, 21:44

So do I

Bogi

Cookee · 25 February 2006, 08:35

Please put me on the list as well ............. thank you!

Dave B · 25 February 2006, 09:07

I have one of the Mercruiser 1.7’s. Had the engine replaced under the warranty in July last year as the oil cooler failed and filled the motor with sea water. Did not do the engine any good but at least I know that it will keep running with sea water as a lube (the engine bay had all the oil in it as the engine blew all its oil seals.) Starter motors are also crap.

cat tales · 25 February 2006, 20:32

I just found your post.
I have a 2002 27’ sportcat catamaran with twin 1.7 tdi mercruisers,
In two years I put 550 hrs. On the motors. During a 150-mile trip in the Bahamas I lost a motor. First the oil pressure alarm went off. I shut the motor down and went to safe harbor. I checked every thing. Then restarted the motor. It smoked blue. I figured that I lost a turbo. (At this point in time from the net, I herd of the wastegate failure). I started back home, 150 miles away, on the other motor at 2200 rpm. To assist I ran the bad motor at1500 to assist. After 10 minuets it started loosing oil pressure. I shifted to neutral and hit the shut down switch only to have “run away” it blew the dipstick into the engine cover. At this point I was one year out of warranty. I called Cummins and got connected to a technician who told me not to touch the motor, and gave me the phone # of a rep. I told the rep. What had happened and I knew of the problems with piston cracks on earlier motors. They offered me a new motor at 50% of cost ($3000 u.s.) but the labor to exchange was more the cost. I accepted and got the new motor and replaced it my self. I have 50 hrs. On it. It runs quieter, and stronger than the other motor. Then They, (Isuzu) wanted the blown motor back to find out the cause of failure. I wanted to keep it for parts or rebuild in anticipation of the other motor failing. These motors are marketed to last 8 to 10,000 hrs. I agreed and returned the motor several months ago I will post the results if I receive them.
In searching the net I have discovered the trouble I had is at a 10 to 15% rate at 500 to 800 hrs. Here in the U.S. if it were a car it would constitute a recall. If I were you I would have a back up motor or/ and an inflatable before going beyond radio or cell range. And definitely carry an e.p.r.b.

Arlon · 25 February 2006, 21:54

I sent everyone an IM with a link to the 1.7 owners group. Arlon

Cookee · 26 February 2006, 10:04

Quote:

Originally Posted by Arlon

I sent everyone an IM with a link to the 1.7 owners group. Arlon

Didn't get mine?

John Kennett · 26 February 2006, 11:18

Quote:

Originally Posted by Arlon

I sent everyone an IM with a link to the 1.7 owners group. Arlon

Arlon, if it would make the information be easier for people to find you're welcome to set up camp here if you want.

John

Arlon · 26 February 2006, 19:45

Thanks, I didn't want to step on any forums toes. 1.7 group is on yahoo and is sort of a support group for owners or parties interested in these engines.

If interested, the group is located here:
http://groups.yahoo.com/group/cummin...iser_120hp_DTI

oy.dopey · 18 July 2008, 17:38

RE:- Cat tales above. Just had the same thing happen to me today, engine 5yrs old but only 130hrs on clock, just had new turbo fitted yesterday!!!!!!

Simon666 · 07 August 2008, 23:00

FYI.
I saw a post about crap starter motors on these engines.
My dad has this motor in his river boat on the Thames. Last week he went to start it and the starter did not disengage from the flywheel ringear so the engine spun the starter. This was only noticed by the smoke coming from under the engine cowling.
Mercruiser wanted some silly figure for a new starter, So i went down to the local motor factors. Asked for a Vauxhall Astra mk4 diesel starter motor. I can tell you the starter they gave me is identical in every way to the Mercruiser one, just not painted black. At £69 is a bargain, and works perfectly, just a sod to change.

I also had starter failure on my uncles RIB which has a VW 150hp tdi inboard (straight out a VW Transporter van), only the solenoid would not engage. I put it down to the fact that car derived engines have the starter located at the bottom of the bellhousing right in the damp of the bilge. Luckily this boat still has warranty on the engine, so is being done by RK marine. The starter on these VW engines requires the engine to be removed from the boat to be replaced!

Glad im not paying for it!

yorfuoj · 31 August 2008, 23:16

The 1.7DTI Mercruiser outputs 120hp @ 4200rpm, and the wastegate limits the turbo pressure.
A Mercruiser technician warned me : if the wastegate is blocked for any reason, the power can raise to 150hp or more at 4500rpm.

So, take care, if your engine seems to become more powerful, death is very close - check the wastegate !

BogMonster · 01 September 2008, 16:58

Quote:

Originally Posted by yorfuoj

The 1.7DTI Mercruiser outputs 120hp @ 4200rpm, and the wastegate limits the turbo pressure.
A Mercruiser technician warned me : if the wastegate is blocked for any reason, the power can raise to 150hp or more at 4500rpm.

So, take care, if your engine seems to become more powerful, death is very close - check the wastegate !

As the old saying goes "if it seems too good to be true then it probably is!"