|
|
Post by dropout on Jul 21, 2020 8:20:35 GMT -5
Looking at a 2011 Regal 3350, with twin Volvo Penta 8.1 GXI w/ 325 hrs.
Both motors seem to be a bit shakey at idle. You feel the vibration through out the boat, everything almost rattles. Is this common?
Any opinions on these motors?
|
|
|
|
Post by gofast24 on Jul 21, 2020 10:39:46 GMT -5
Dont worry about engine vibration. A glass of water on top of a outdoor AC condenser unit would shake more than that. Those are strong engines and only 325 hours is hardly broke in! To make sure before you buy, have a VP tech pull any codes from engines ECU, if no fault code found, engines fine. Strongly recommend a survey on that size vessel, well worth the money before buying! If no ECU codes found Possible engine mounts bad or prop shaft/outdrive shaft out of alignment.
Also, please create a salutation with your current model, year, engine type, location where docked (salt or fresh water).
|
|
|
|
Post by jnelson90 on Jul 21, 2020 10:42:41 GMT -5
I also have the 8.1 GXi engines and I was told that they idle ruff due to an aggressive camshaft.
|
|
|
|
Post by gofast24 on Jul 21, 2020 10:55:03 GMT -5
Our engines are 2001 GSiI-A.,420 HP rated, about to hit 1000 operating hours and no rough idling or vibration in hull. These are fuel injected with electronic ignition and so far haven't even needed to change spark plugs, injectors, fuel pumps, etc.
|
|
|
|
Post by gofast24 on Jul 22, 2020 10:50:17 GMT -5
Our engines are 2001 GSiI-A.,420 HP rated, about to hit 1000 operating hours and no rough idling or vibration in hull. These are fuel injected with electronic ignition and so far haven't even needed to change spark plugs, injectors, fuel pumps, etc. If your 2011 GXI's are the 420 HP version dont think camshaft timing(lift/duration) will cause it to vibrate more than our 2001's? Are you engines post EPA emissions requirements, i.e. catalytic converter equipped?)? Friend with cat equipped engines do run rough until full warmed up! |
|
|
|
Post by jnelson90 on Jul 22, 2020 12:15:42 GMT -5
My 8.1 GXi's are fuel injected and without catalytic converters. I had been working with the national service manager at Volvo Penta on some engine issues and he was the one that mentioned the ruff idle due to the camshaft. I don't feel any vibrations but both my engines do slightly hunt (including the brand new rebuilt 8.1 GXi engine at idle) and as such don't seem smooth at idle.
|
|
|
|
Post by gofast24 on Jul 23, 2020 11:14:15 GMT -5
Hunting at idle most likely a IAC (idle air control) defect as it controls the air/fuel ratio at idle, seperatly from the throttle plate position. So, dont know if IAC is part of a rebuilt engine, part of throttle body? Did the rebuilt engine come with new throttle body/IAC??
|
|
|
|
Post by jnelson90 on Jul 29, 2020 10:54:43 GMT -5
Yes, I had heard that as well when I first purchased the boat by my inspector. Since the IAC cannot be independently purchased/replaced I ended up replacing BOTH throttle bodies with no real change to the somewhat ruff idle. FYI: My rebuilt engine had significant issues at idle (hunting from 100RPM up to almost 1500RPM) - after battling with Volvo Penta for over a year turned out to be issues with most all the valve seats, weak valve springs and a broken valve spring. It was a nightmare for us trying to get a working boat and sinking a bunch of money to wind up with a defective rebuild.
|
|
|
|
Post by gofast24 on Jul 30, 2020 11:00:06 GMT -5
Gosh, what a PITA! Where did you gt the rebuilt engine, factory rebuilt or some other on line re man house? Did the rebuilder take care of all your costs, labor to R+R and/or fix, etc? Assuming you replaced the throttle bodies your self so no recourse with a VP dealer doing it? One of the problems with DIY engine repairs, buy parts at a low cost from wherever and install , problem remains? Most likely the parts house wont take them back? Good luck, bad time of year to have to do what your doing to get vessel back out to sea?
|
|
|
|
Post by jnelson90 on Jul 30, 2020 11:29:23 GMT -5
The whole rebuilt engine issue is a very long story but in the end - VP totally let me down. I lost 1 and 1/2 seasons of boating and more the $5k in not reimbursed troubleshooting expenses. VP said they were through paying for this and I indicated it was horrible for them to pass the defect on to the customer. I actually hung up on the national service manager for VP as I was so disgusted. They stood by the fact that the marina that sold me the rebuilt engine was not a fully authorized VP dealer. Regarding the throttle bodies; yes I did the work but I am very particular to using on the proper parts, torquing specs, etc. I purchased them at Marine Parts Express which is one of the largest VP parts locations (I think that is accurate). I believe that I got new throttle bodies with no indications otherwise. Also, it was back in 2014 when I replaced them. The engine rebuild is from 2018.
|
|
|
|
Post by gofast24 on Aug 1, 2020 11:08:56 GMT -5
Sorry to hear about your never ending problem! Shame on Regal for not supporting you but I understand there position, not VP reman engines and non certified mechanic doing the service! Also, not having a certified Regal mechanic or dealer do it you thought you would save a few $ and end up in the hole for $5k (plus re man engines?) with no recourse (what did the non factory rebuilt engines cost)? Wonder what you will do now to get vessel back running properly ?
Hopefully you will gt engines fixed, did you talk to the re man company you bought engines from?
Ya, know you are pretty upset but dont know what to say in furtherance to getting your problem fixed and up running again!
Stay safe!
|
|
|
|
Post by jnelson90 on Aug 3, 2020 10:56:57 GMT -5
The rebuilt engine was done by VP - or technically one of their vendors. I did not do it to save money, I just used my marina mechanics because I could not get in at the closest marina with VP certified mechanics until the next year, not to mention the thought of moving the boat with one engine to another marina. The end result, I moved marinas (since I feel my marina let me down) and the engine was fixed by sending the heads to a local machine shop so they could redo the valve seats and the mechanics at my new marina (VP certified) replaced the bad valve springs. Things are running good now but from my point I blame VP for not having the proper quality control at their vendor and passing on the defects to the consumer. The base VP rebuilt longblock was $8,500 but there were plenty of other charges beyond installation including new manifolds, risers, etc. Easier to do some of that work as part of the project with then engine out of the boat. I don't like even thinking about that whole nightmare. On the bright side - my wife loves our new marina and it is professionally run versus our last marina.
|
|
