2000 5.7 gsi problem

[SD2600]

just figured out how to upload pics.... big accomplishment for me!

 

[alldodge]

Could probably take that to Fastenal and they would have one on the shelf. Looks like a 3/8 inverted flare by 3/8-24. I also just put "volvo penta 856954" and found one place which listing one for 17. Could also be metric 10mm

This being on the low side, I'm not sure this is your issue, but is a great thing you found it for safety. Bleeding off pressure real quick in most cases is the fuel pressure regulator, but can also be an injector

 

[Lou C]

Great story and feedback. I remember when I replaced the heads on my 4.3 this summer (first time ever doing this) I went over the valve adjustment and distributor installation 2x to make sure I had it right. Its confusing because you hear different things on how to do this, from many sources. And its easy to make a mistake when you think its #1 on TDC of the comp stroke, it may not be! You have to check to make sure that both valves on #1 are closed, if not you could have #6 at TDC of the compression stroke.
I just followed what was in my OMC shop manual. It started up so fast it startled me, I wasn't expecting it to start that quick.

 

[SD2600]

Ok so my fuel pressure on the hard hp line when the key is turned to on reads 35 psi but falls to zero once the fuel pumps stop working for 2 sec

tbe Schaeder valve on my return tank that the hp pump sits on top of reads about 4 psi with the key on

the hp line reads 32 at idle on the muffs
the holding tank reads 10psi at idle in the muffs

im going to take her to the harbor and check my readings under load stand bye for results

 

[SD2600]

Ok so my fuel pressure on the hard hp line when the key is turned to on reads 35 psi but falls to zero once the fuel pumps stop working for 2 sec

tbe Schaeder valve on my return tank that the hp pump sits on top of reads about 4 psi with the key on

the hp line reads 32 at idle on the muffs
the holding tank reads 10psi at idle in the muffs

im going to take her to the harbor and check my readings under load stand bye for results

 

[SD2600]

Surprising turn of events.....

so so I drop in the harbor to try and get some numbers under load... hp goes from 32 to just under 20psi at about 1000rpm.. this is when it stumbles and wants to die

so I decide to throw on a new fuel pump I have and test

new pump is nice and quiet and hits 32 with the key on.. fire it up and immediately starts to take throttle and jump on plane! 34 psi under load and holding strong! All is well.. so I think

i take it around the bay varying rpm for about 20 min.. I decide I’m happy and head back to the dock when I hear the motor making a knocking sound and my oil pressure falls to zero and my temp starts to climb

ok.. I shut it down, drop the anchor to investigate...I pull my water pump to check and see it’s condition... looks good. Reassemble and check the dip stick.. plenty of oil and looks good

now I’m sitting here waiting for it to cool down.. I bump the key to see if I have oil pressure and nothing and it sound like crap....

i guess I’ll call a tow and not cause any more damage.....

thoughts?

 

[alldodge]

Oh crud, this doesn't sound good. The knocking is bad but loss of oil pressure and overheating I'm hoping there wasn't detonation happening. Running lean can cause this issue quick and can wipe out a piston(s).

I really hate what we will find, but I think a bearing was spun and the over heat is a head gasket was blown and the gases got into the cooling system and caused the overheat.

Suggest compression test first

 

[SD2600]

Surprising turn of events.....

so so I drop in the harbor to try and get some numbers under load... hp goes from 32 to just under 20psi at about 1000rpm.. this is when it stumbles and wants to die

so I decide to throw on a new fuel pump I have and test

new pump is nice and quiet and hits 32 with the key on.. fire it up and immediately starts to take throttle and jump on plane! 34 psi under load and holding strong! All is well.. so I think

i take it around the bay varying rpm for about 20 min.. I decide I’m happy and head back to the dock when I hear the motor making a knocking sound and my oil pressure falls to zero and my temp starts to climb

ok.. I shut it down, drop the anchor to investigate...I pull my water pump to check and see it’s condition... looks good. Reassemble and check the dip stick.. plenty of oil and looks good

now I’m sitting here waiting for it to cool down.. I bump the key to see if I have oil pressure and nothing and it sound like crap....

i guess I’ll call a tow and not cause any more damage.....

thoughts?

 

[alldodge]

Must be having some issues seeing your post

 

[SD2600]

sorry for the double posts,,, was working from my phone and computers and phones are not my strong point... but by my resent mechanic endeavors perhaps thats not a strong point either....

so the tow was short and sweet as i could see the harbor from my anchored position. got to help out an older couple get their boat that was having some issues on the trailer. always feels good to lend a hand... trailered home and threw it on the muffs to see where i was with the oil pressure,,

fires right away and this time i got 10 psi at idle. i let it reach operations temp roughly 175 and shut it down.. the rough knocking sound seems to be from he top end.

I drained the oil and filter and it seems i may have deeper problems like dodge post suggests.....here are the pics of the oil filter that i drained through a paint filter as well as the oil

 

[SD2600]

didn't get a chance to compression test, but wondering if i should even bother with the gold mine found in the oil and filter....i guess i could compression test tomorrow am but it the motor might need to be pulled anyway.....

as shitty as this may be im still kinda excited because when she ran she was awesome!

 

[alldodge]

Bummer man, that looks really bad.

 

[SD2600]

Yeah I agree, but things break... I’m still havin fun, learning a lot. And I believe learning isn’t something u can pay for.. u have to earn it... tomorrow I will pull the plugs for a look, check for codes, then call a shop and see what yanking it will cost.... dodge thankyou so much. I’ll be sure to update the thread as it unfolds

 

[SD2600]

well, my old motor turned out to be trashed, spun bearings...Got a new long block installed and i picked her up today. My plan is hopefully to take her out sunday for an all day break-in. Mech said to get it on plane and vary the throttle every 15 min or so but to not exceed 3/4 throttle. That shouldn't be a problem because I have never even spun my old trashed motor past 3200....Im sure break-in procedure vary as much as our opinions but Im always open to input..... thanks again Dodge for your help.

 

[alldodge]

That sounds good, do this for the first 20 hours then open it up and see if it will reach WOT. The motor should have no issues running at WOT but the point is to see if it will reach it (should be 4400-4800 rpm). If the motor reaches max rpms then you have the right prop and will work easier and not be lugging.

 

[SD2600]

The plot thickens.... took her out for a break in and well, the boat wasn’t running well enough to do much...when I fired it up on the trailer it seemed to struggle to even idle like it had a monster cam.. gave it a touch of throttle in neutral and it idled as normal. But it didn’t sound quite right... idle to the dock. Park the truck. Hop in and head back to the harbor that I know all to well from my previous test runs... I go to give it throttle and it backfires at about 1300 rpm. Not enough to get on plane.. a lil frustrated I let it idle for a few. One more shot and the same thing... ok back to the trailer. At least this time under her own power.. back home while flushing the motor and giving her a bath it sounds like it might be missing at idle.. not sure. Back to the shop in the am... I’ll be waiting for them to open the gate at 0800...

 

[alldodge]

Back firing at throttle up and sluggish idle, I would look at the firing order and timing

1-8-4-3-6-5-7-2

Wouldn't be the first time someone put the wires on the wrong plugs

 

[SD2600]

Don’t have time check today.. family time... but for the price I payed the shop I figured it’s their problem to make right... hopefully it’s that simple

 

[SD2600]

ok. so my boat has been at the shop for a week. i called for an update and the mech said that he pulled the iac valve and cleaned it up and it looks good. double checked the firing order and it was also good. he pulled and cleaned and tested the injectors and they were good. he tried to hook up their computer to see if there was any codes and it would not link. he tried another computer and it also wouldn't link....

I asked him to hook up a test light which he called the winky blinky it too produced nothing.

I had my mefi checked by bob at obd diagnostics in march towards the beginning of my problems and he said everything was flawless.... The mech said he was calling around to see if he could try and track down another mefi to try and see if thats the problem.... any thoughts?

 

[alldodge]

he pulled and cleaned and tested the injectors and they were good

he tried to hook up their computer to see if there was any codes and it would not link. he tried another computer and it also wouldn't link

These two comments are really bad, your mechanic does not have the tools or expertise to find and fix the issue(s), yet he still is working and folks are paying him.

You really need to find another mechanic because he is only taking your money.

Either that or need to invest in your own software or scanner

The guy cannot scan the motor but he cleaned and tested the injectors, but he does not have a noid light. He does not (large repeat does NOT) have the equipment to test marine injectors.