when is a engine knacked

[fattybigboats]

when is a engine knacked??let me explain ..i have a six cyl engine in a boat that has not run for 15 year..but it was running with no problems ...when boat came out of water 15 year ago ?its compleat..and dry.........so do i consider it a scraper that needs removing or a usefull assett? manythanks in advance for your time.......fatts

 

[hlb]

Dont Know. Start it up and see!!

 

[Dave_Snelson]

Its knackered when it doesn't work any more. Try changing the oil, or better still, having it looked over by a competant mechanic. Make sure that all the ancilliaries still work, then fire it up and see how you go. It doesn't wear out when its stood still, but it could corrode.

 

[fattybigboats]

more info ....the ancilliaries.....are corroded ... so to fire her or just to try a few hundred pound?lot cheaper than a replacement.....though..............im just making sure im not showing sign,s of madness ......i can hear them say lol he tried to get that going after 15 years ...... ?so would you spend a few hundred on trying if you had same choice?

 

[BarryH]

A lot depends on how it was laid up. Was it serviced etc before it was put away?
As others have said run it up and see what it runs like. I'd expect rubber part to detiroate fairly quickly. Would be worth checking and changing impellers etc.

Change the oil and turn it over to get oil round it before you fire it. Might be worth pitting a spoonful of oil into the cylinders when you do this. It'll clear pretty quickly once it fire.....if it fires! You don't say wether its and oil burner or a proper petrol engine?

 

[fattybigboats]

diesel.........layed up with no problems .all rubber parts ..gone just stood solid for a life time ........my concern was ?condension of water in the block plus maybe cold weather damage 6 cyl perkins ...heavy built

 

[Freebee]

I would be inclined to get some lubricant in the bores, see if it will turn over by hand, you say hoses are gone, perished? Ignoring the rubber fill water ways with water and try start it, if it runs shut down immediatly then fix it up if it doesn't junk it but give it a fair go first-it may save you a lot of money.

 

[BarryH]

hmmm, if theres no obvious damage from the block freezing then I'd say your probably ok'ish. Though while initialy running the engine I'd make visual checks for leaks etc. After initial running I'd also check the oil for water contamination. Take off the oil filler to see if theres any milkyness in the oil up top. Initally I would expect slight codensation which would only be expected. This should clear once running for a while and up to temp.
Keep and eye on the temp guage and oil pressure guage.

Do you know what sort of condition the engine was in when last used. I'm taking it as read that the oil pressure was within the allowable limits and there was no obvious faults or untoward noises.

On a personal note I would be weary of relying on an engine such as this, but thats just a personal thing. Surely if push came to shove, reconditioning the engine would be far maore viable than replacing with a new unit.

Will the boat be based inland or coastal?

 

[fattybigboats]

many thank,s for the reply,s the engine turn,s by hand ...she,1 of a pair the other is dead..... im just considering whether i need a new .recon pair or try a mix and match approach?cost is the only consideration..........................ie will it cost more to repair then find a match, or am i better starting with two good unit,s that are matched..........................oil pressure and how well the unit was running (15 year ago) is unknown ...just that it ran with no prob,s no service history the unit look,s clean metal inside.what i can see....................its a show me the mony thing .oo.painfull

 

[BarryH]

I've always been wary of s/h engines unless you know the history, especially if they're older models.
On your known engine you know it was running ok. So if push came to shove you could proabably get away with a strip and check at the least. If you wanted to go further you could deglaze it put in new rings and check the bearings in the crank. Not a massive cost and quite within the scope of someone with a bit of common.

The other engine that you say is dead? I'd be inclined to pull it out and strip it to see how dead it really is. If theres meat in the cylinders for a rebore and theres enough of the journal left on the crank then it can be saved at a reasonable cost.
You don't need the sevices of the marine trade you can use a local company that rebores/grinds cranks near to you. Theres loads in the yellow pages. Most will have a look at the block and tell you wether its poss or not to achieve a servicable finish.

At this stage in the game you've nothing to loose and all to gain. Where abouts are you as you've not filled in your bio?

 

[Dave_Snelson]

6 cylinder Perkins...definately worth a shout. Replace bits, have injectors checked. Should be OK.

 

[steverow]

Is it a Perkins T6354M??
Let me know, I may be able to help with a manual and some limited S/H spares.
Need engine No.
Oddly enough, the earlier Perkins engines are substantially more robust than later ones, so paradoxically the older it is, the better chance there is that it has survived.

Some Websites which may be of Interest:

www.FoleyEngines.com

www.tadiesels.com

www.diperk.co.uk (on a good day)

www.lancingmarine.com

Steve.

 

[fattybigboats]

thanks for all the above iv decided to give the engine a chance i will remove it with care.....and go from there the other engine is so incomplete that its not viable....stevero i dont know the model number but ill look for it when i next go to boat in a couple weeks and track you down if thats ok ...thanks for the replies once again .......fatty