Mrwiggly

[BroadScot]

41 minutes ago, Bound2Please said:

I have suffered a cam belt failure at 80mph on a belt that had been changed 12k miles before, by a Dealer. Fan belt snapped then got inside cover of cam belt.......................... bang

Ooops !

[Bound2Please]

21 minutes ago, BroadScot said:

Ooops !

ooops for sure Iain annoyingly was on way to old boat in Christmas week ................... no such probs now Jag has chains not rubber bands lol

[Guest]

1 hour ago, Bound2Please said:

I have suffered a cam belt failure at 80mph on a belt that had been changed 12k miles before, by a Dealer. Fan belt snapped then got inside cover of cam belt.......................... bang

That's one then....

Compared to how many drivers have read this thread ?

[BroadScot]

52 minutes ago, Bound2Please said:

ooops for sure Iain annoyingly was on way to old boat in Christmas week ................... no such probs now Jag has chains not rubber bands lol

You should have bought a Reliant Robin, Charlie,  not much chance of reaching 80mph !!! 

[JawsOrca]

Strowager, That's a very odd question coming from yourself?! Cambelts fail frequently even on a diesel car.  Thankfully it seems most people are smart enough to get them serviced. 

Although this is the broads and the banks are present, the idea of reducing risk an element of an engine failing is a sensible one to take.. removing the risk of a cambelt failure is very very logical.  That's why (as I'm sure you know) most marinised (diesel) engines steer away from cambelts and electronic ignition as these are all points at risk at failing. 

[Bound2Please]

2 minutes ago, BroadScot said:

You should have bought a Reliant Robin, Charlie,  not much chance of reaching 80mph !!! 

Who you fink i is delboy???????

[BroadScot]

21 minutes ago, Bound2Please said:

Who you fink i is delboy???????

On this Forum, Charlie.....anything IS possible !!! 

Iain

[Guest]

34 minutes ago, JawsOrca said:

Strowager, That's a very odd question coming from yourself?! Cambelts fail frequently even on a diesel car.  Thankfully it seems most people are smart enough to get them serviced. 

Although this is the broads and the banks are present, the idea of reducing risk an element of an engine failing is a sensible one to take.. removing the risk of a cambelt failure is very very logical.  That's why (as I'm sure you know) most marinised (diesel) engines steer away from cambelts and electronic ignition as these are all points at risk at failing. 

Yes Alan, most people are indeed "smart enough" to get their cam belts serviced, (they'd be pretty stupid not to really).

Maybe that's the main factor of why such a very small percentage do actually fail.

My question still stands, how many forum members have actually suffered a cam belt breakage personally ?,  despite almost all cars (petrol and diesel) having been fitted with them for the past 20 years, and being driven for many thousands of miles each year ?

There's plenty of modern marine diesels that do now have cambelts, electronic ignition, and turbos......

[LondonRascal]

Ahh now if we are going to go down the root of Cam Belts and what destructive potential having one fail can do, what about the new bead of marinaded diesels engines with High Pressure Common Rail  (HPCR) technology for fuel - this is the next 'time bomb' waiting to happen.

I say this because while in cars this is nothing new, in the marine world this stuff is beginning to get more. urm common.  Thing is, in a car the fuel is being used regularly, and you go to a filling station and their fuel will be changed regularly and all is well with the world - or should be.

Move over to the marine environment - the fuel from supplier may not be as 'fresh' as a local road filling station, then you put it in a less than pristine tank and leave it - maybe for months then expect the new engines to run flawlessly.

HPCR, is getting found in ever lower horsepower engines. The latest generation of small (40hp or more) Yanmar (for example)  four-cylinder engines are now HPCR.

The pressure in conventional injection systems rarely exceeds 5,000 psi, it is not uncommon to see 30,000 psi on HPCR engines, with some as high as 40,000 psi These kinds of pressures require orifice sizes, clearances and machining tolerances to within 1-3 microns, where a micron is a millionth of a metre. 

Fluids at these pressures are capable of acting like water jet cutters, especially if there is even microscopic hard particle contamination in the fuel. The result is scoring and abrading of critical injection pump and injector components.  For conventional (low pressure) fuel injection systems the critical particle size to initiate abrasive wear is about 6-7 microns. 

Traditional fuel filter elements are not adequate for HPCR systems. What is more, the filtration industry does not currently have particle counters suitable for calibrating instruments below 4 microns – in other words, the smallest particle detection and counting level is above the size of the most damaging particles for HPCR systems.

So, anyone with a high-pressure injection system should be somewhat paranoid about the quality of fuel supplies and the level of filtration being provided for the engine.

[JanetAnne]

And you haven't even begun to mention fouled HPCR injectors at over £200 a piece let alone coding them into the ecu's. Don't forget that we have moved away from mechanical injection totally now.

And we have personally had three belts fail Strow. All were well within their service life and two were genuine  Ford belts! To be fair though, we do some horrendous mileages some weeks.

[JawsOrca]

2 hours ago, Strowager said:

cam belt breakage personally

2 belts here in the family A Pug.. Escort 1.8.

Which small marine engines have cambelts and electronic ignition?

[Guest]

2 hours ago, JawsOrca said:

2 belts here in the family A Pug.. Escort 1.8.

Which small marine engines have cambelts and electronic ignition?

So that's three forum members with belt failures, two of which have had multiple failures.

That sounds like very disproportionate bad luck.......

....and I didn't say "small" Alan.

https://www.google.co.uk/search?q=volvo+penta+cambelt&source=lnms&tbm=isch&sa=X&ved=0ahUKEwim2JXL76XNAhVlAcAKHYhdCLQQ_AUICSgC&biw=1194&bih=639#imgrc=j7Ap3gZ32zd6LM%3A

[JanetAnne]

Not especially if you consider I will do over 1200 miles this week alone. Belt failures are not always the cause but sometimes the result. Old Vauxhall water pumps were driven off the timing belt and were weak. Ford tensioners can come undone because the slight whip in the belt as it wears vibrates the tensioner. If we all expect to average one mechanical break down every 100.000 miles driven mine will come round every couple of years whereas some will have 10 years before they are calling the RAC!

[JawsOrca]

What point are you trying to prove strowager?

That an inland boat is not really going to do 100,000 miles in its lifetime?

If so then you need to consider that if the OP goes an gets a 1.8 engine from the breakers, god only knows what life it's had.. if it's been serviced regularly? For peace of mind it will need a new belt kit and new waterpump (if applicable), if completed by someone else that's a least £500. So yes you can put it in but you are looking at at least £1500.  Then you have a old engine which lets be honest, wont receive the best servicing and isn't quite as designed (no offence intended to the OP).

You can't avoid the fact that it's far wiser, when considering reengining to do so with new and no messing about with old belt driven car engines.. certainly when, as robin says, MPower do deals for lets see a 33hp (same as BMC) for £2248 (+vat) and they do 290 adaption kits (Probably for another grand).. so pretty much for the same price you have a nice new block without none of the extra junk on top of it.  

[Guest]

1 hour ago, JawsOrca said:

What point are you trying to prove strowager?

I'm not trying to "prove any point" Alan.

I was just trying to assist a new member with their first enquiry with the actual experiences I've had with several re-engining and diesel marinsations.

Since it bothers you so much, I'll make no further attempts on this forum.

[JennyMorgan]

6 minutes ago, Strowager said:

I'm not trying to "prove any point" Alan.

I was just trying to assist a new member with their first enquiry with the actual experiences I've had with seceral re-engining and diesel marinsations.

Since it bothers you so much, I'll make no further attempts on this forum.

Shame. Perhaps we could turn the clock back an hour?

[Poppy]

16 hours ago, Strowager said:

Yes Alan, most people are indeed "smart enough" to get their cam belts serviced, (they'd be pretty stupid not to really).

Maybe that's the main factor of why such a very small percentage do actually fail.

My question still stands, how many forum members have actually suffered a cam belt breakage personally ?,  despite almost all cars (petrol and diesel) having been fitted with them for the past 20 years, and being driven for many thousands of miles each year ?

There's plenty of modern marine diesels that do now have cambelts, electronic ignition, and turbos......

I have, admittedly about 20+ years ago on a Vauxhall Cavalier at less than 40K miles. And yes, it was regularly serviced by a main dealer, it being a company car.

[JawsOrca]

43 minutes ago, Strowager said:

I'm not trying to "prove any point" Alan.

I was just trying to assist a new member with their first enquiry with the actual experiences I've had with several re-engining and diesel marinsations.

Since it bothers you so much, I'll make no further attempts on this forum.

Strowager, I'm not bothered at all. I to am trying to share the "argument" for going new as these days there are some amazing deals out there.  We to have had several re-engine (I don't blog everything we do  ) experiences and have always veered down the "fix whats there" or re-engine with new.  

[Drewby]

On 12 June 2016 at 6:52 AM, mrwiggly said:

hi guys, i'm new to this so please bear with me,

i'm thinking of changing my engines from my colvic to ford 1800 diesels, is there anyone out there who can tell me what i need to marinise these engines, 

Hi I'm also new to the forum but everyone seems very friendly and helpful, sorry I haven't a clue about engines, I'm sure someone will be able to help though.

good luck and welcome

Andy

[Maxwellian]

I am bothered, please play nicely together

 

[mrwiggly]

On 6/14/2016 at 5:22 PM, Drewby said:

Hi I'm also new to the forum but everyone seems very friendly and helpful, sorry I haven't a clue about engines, I'm sure someone will be able to help though.

good luck and welcome

Andy

thanx andy, and welcome to you also