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Professional Motor rebuild question...
So if you have a reputable engine builder who has been in business 30 years do a 6K engine rebuild but from the day you get the motor in it leaks oil and needs more repairs for oil leak whose responsible for second repair? Do you as the consumer have to rip cash all over again even though the motor was never working like it should or do they generally repair out of good faith? They always told me they had ideas on why it was leaking but could never get fixed where it didn't leak. I'm just curious what everyones opinions are here.
Thanks |
I can't imagine getting back a rebuild that leaked oil and considering that fine..
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Maybe suggest to the builder you'll mention his name as thinking its ok to have a newly rebuilt engine that pukes out oil.
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NO REPUTABLE Engine Builder would send you a leaking engine period . Now if you have accessories leaking , like oil coolers , power steering , sterndrive reservoirs. Thats on the customer OR the Mechanic to deal with.
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Well son, would you be having words with her pimp if your ho had anal leakage???
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Originally Posted by SunsationLarry
(Post 4512969)
They always told me they had ideas on why it was leaking but could never get fixed where it didn't leak.
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They did rebuild last year and we put engine back in and would bleed out all oil by time I crossed the lake. My old mechanic couldnt find the leak so took it out and sent back to them and they said was fine not leaking. Got it back and took to my new guy who put in and still spewed oil from everywhere but they couldn't figure out where leak was from. Engine builder looked and thought was making to much crankcase pressure so leaking out valve covers and said I needed some valve covers with breathers. I barely used boat because of this and now the engine is out again and back there for a third time. Ive spent 13k on this one rebuild and pulling in and out few times plus little other work and didnt enjoy more than 3 days this season. They have that motor back and I'm probably taking other to them after his one is fixed right so they will be perfectly mated motors. How much do dyno test usually cost? They put on a stand with all the computers hooked up to it and I was thinking about having this done but its an additional 800 minimum they are saying.
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You need a new machine shop.
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Originally Posted by vintage chromoly
(Post 4513002)
You need a new machine shop.
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Who did the work?
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Well, it's not hard to find a leak to be honest if it's leaking that bad, now did they dyno it? fire it on a stand and it was ok? then in boat it leaks? or did they put on valve covers and pan or did you and buddys?
if it is building that much crankcase pressure that's on them, not you, ask them what the ring gaps are and how they finished cylinders.. in what form did you get engine back? carb to pan? longbock? shortblock? |
I would not let the same guy do the work again. Shipping engine is not that expensive compared to what you spent. Dyno time should be 100hr plus fuel oil. You will be in court over this.
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I am just a backyard engine builder and have never had a problem with oil leakage. You need to take it somewhere else.
OH and BTW I don't build stock engines. the latest is 598 cubes at +800 HP ( engine is designed and built using parts for 1500 HP as I plan on adding a Procharger ) |
Originally Posted by GLENAMY 242SS
(Post 4513006)
Who did the work?
Before I mention I'm going to see how they handle this, they may comeback stellar and I'm just jumping the gun but I'm kinda concerned about where this could go. |
They more than likely will come back with silicone gooped on them . A good builder would not have sent them out this way in the first place. Craftsmanship and pride or just money in his pocket.
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I am a little confused. you said your mechanic said that it may be building too much pressure and needs valve covers with vents. how is the block vented now? does it have a pcv or what system for the crank pressure to vent? if it has valve covers with no vents I can see how it would build pressure in the block and push oil out. also what are you sending out with the engine and what are you keeping as far as external hardware? when ever I run an engine in on my test stand I use all the lines and coolers, etc from the boat so if there is a leak in something it will show up on the stand instead of the boat. more details are needed on what has been done on what parts.
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My mechanic is so good I go to him every week!
For about $20 you can get oil dye and a black light and see exactly where that oil is coming from. It worked like a charm for me. |
You have Procharged engines, right?
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We need more info please
Sorry to hear that you are going through this, definitely not fair, and all to common in the marine world. But let's make sure we are not missing something here..... Sounds like you decided not to dyno the first time? Running a freshly built engine on the dyno has WAY more benefits then recording power output, like tuning, properly breaking in, and checking for LEAKS ;-) Hopefully your builder stands behind his work in some way, but that doesn't necessarily mean free, since we don't know what your original arrangements were. At the very least I hope you both have better communication in the future. OSO brothers can't guarantee everything, but we will offer as much advice as possible to help everyone protect themselves from issues like these. Good luck |
yes, were engines complete, or did you put on pan, valve covers etc ? if you are loosing that much oil that quick should not be hard to find, sound more like a oil line or fitting ? put a go pro camera in there and run it...
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Quickest way to find oil leaks , use a Evap Smoke Machine , Burns Baby Oil and make dense white smoke . plug it in the oil filler hole , plug off breathers , turn on air supply . Mine has a graduated flowmeter , will tell you how big your leak is . Easiest way to do it , and the cleanest .
http://www.ntxtools.com/network-tool...FVI6gQodQksMjw |
Originally Posted by SunsationLarry
(Post 4512999)
They did rebuild last year and we put engine back in and would bleed out all oil by time I crossed the lake. My old mechanic couldnt find the leak so took it out and sent back to them and they said was fine not leaking. Got it back and took to my new guy who put in and still spewed oil from everywhere but they couldn't figure out where leak was from. Engine builder looked and thought was making to much crankcase pressure so leaking out valve covers and said I needed some valve covers with breathers. I barely used boat because of this and now the engine is out again and back there for a third time. Ive spent 13k on this one rebuild and pulling in and out few times plus little other work and didnt enjoy more than 3
days this season. They have that motor back and I'm probably taking other to them after his one is fixed right so they will be perfectly mated motors. How much do dyno test usually cost? They put on a stand with all the computers hooked up to it and I was thinking about having this done but its an additional 800 minimum they are saying. |
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" he works off his land in Conroe area"
Is this guy still involved? |
Ten 2 one you have an engine builder that s going to blame it on the rigger and a rigger who is going to blame it on the builder.! You need to get in your bilge and figure out what's going on
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Originally Posted by SunsationLarry
(Post 4512969)
So if you have a reputable engine builder who has been in business 30 years do a 6K engine rebuild but from the day you get the motor in it leaks oil and needs more repairs for oil leak whose responsible for second repair? Do you as the consumer have to rip cash all over again even though the motor was never working like it should or do they generally repair out of good faith? They always told me they had ideas on why it was leaking but could never get fixed where it didn't leak. I'm just curious what everyones opinions are here.
Thanks |
Hey there Larry, we can absolutely help diagnose your leak. If it's not something we'd handle in our shop we pull it and work with one of the two machine shops in the area we trust to work on blue motors. With that being said you'd avoid the typical long wait as we have the ability to get things moving along being industry partners. Shoot me a PM to discuss further and I'll let ya know if we might be able to assist. Shop is in La Porte near Kemah and we work on a few Conroe boats.
Jordan Smith 832-917-3030 |
IF the engine does not have adequate crankcase ventilation it could be that he is pushing the oil out of the dipstick if it is not o ringed and locked down. That will empty an engine in minutes.
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Originally Posted by SunsationLarry
(Post 4512999)
They did rebuild last year and we put engine back in and would bleed out all oil by time I crossed the lake. .
Did you lose oil pressure? Do any damage? hear things rattle?? lose power? |
Iirc there is a plug above the fuel pump boss that if left out won't necessarily leak at idle but shoots oil out pretty bad at higher rpms. Had a drag car motor brought to me for that once a while back.
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Contact TxHAWK....he can steer you in the right direction if your in TEXAS
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Originally Posted by Unlimited jd
(Post 4513351)
Iirc there is a plug above the fuel pump boss that if left out won't necessarily leak at idle but shoots oil out pretty bad at higher rpms. Had a drag car motor brought to me for that once a while back.
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In your other post you mention someone told you the mechanic is a pill head...........pretty sure i found your problem.
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Originally Posted by Rookie
(Post 4513042)
You have Procharged engines, right?
They were not dyno'd on stand just built then back to mechanic and in boat. stock valve covers are still on boat...Two procharged motors but only newly rebuilt one leaks, both superchargers went back to Procharger last year and both were still in perfect shape. They just resealed them and sent back. |
Originally Posted by cabin fever
(Post 4513423)
In your other post you mention someone told you the mechanic is a pill head...........pretty sure i found your problem.
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Originally Posted by buck35
(Post 4513084)
so is the oil misted all over or puddled up in the bilge?
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Originally Posted by activator40
(Post 4513254)
Smith speed Jordan..He's the best..Very thorough..Located Conroe or kemah area
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larry, I must have missed it but what CID are these engines?
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