Re: Stus-List Timing Belt

The Pathfinder (VW) diesel is a single overhead cam design, so it needs a belt or chain to drive the camshaft off the crankshaft. Most diesels use pushrods and the camshaft is in the block, not in the cylinder head. Rick Brass Washington, NC From: CnC-List [mailto:cnc-list-boun..

Re: Stus-List Timing Belt

I agree with you, Doug. My first reaction to the original question was that all diesel engines, by the very nature of the high compression needed for ignition of a diesel, are interference engines. I couldn’t recall any diesels in my experience that used a timing belt instead of a chain or g

Re: Stus-List Engine starting issue

On my Universal M35B (which is a later version Kubota engine, but similar to yours) the preheat button powers up both the glow plugs and the electric fuel lift pump, which supplies fuel to the high pressure injection pump. When you press the start without preheat, does it crank without starti

Re: Stus-List Timing Belt

The timing on a Yanmar is based on the injection of fuel. You can adjust the timing by changing the shims under the injector pump. Thinner shims mean more plunger depth earlier in the rotation, thus earlier injection - timing advance. This is ignition timing similar to rotating the distributor c

Re: Stus-List Engine starting issue

Amen. After some engine work, I was able to start it a number times, then nothing. I spent many hours chasing the wires. Everything connected, yes. 12 v where needed, yes. Finally realized that even though I had connectivity, there was just not enough current. Ran a separate wire from the termin

Re: Stus-List Timing Belt

You are timing the opening of the VALVES to the crankshaft, and the injector pump to the crankshaft. All this has to happen a certain order for the engine to function properly. If one is out of sequence the engine will either run poorly or not at all. Doug Mountjoysv Rebecca Leah C&C Landfall 39

Re: Stus-List Timing Belt

Valve timing, on a diesel it is not really timing as it is not triggering a distributor, but it still moves the valve train on an overhead cam engine. The Pathfinder was a marinized VW single overhead cam diesel that was converted from the car engines. The car engine was a converted gas design. Or

Re: Stus-List Timing Belt

... and the cam shaft is gear driven off of the crankshaft. (Not timing belt or chain driven) sam On Jul 31, 2020, at 11:12 AM, Neil Andersen via CnC-List wrote:  What are you timing? A diesel doesn’t have spark plugs and the valves are on a cam shaft. Neil Andersen 1982 C&C 32 Rock Hall

Re: Stus-List Engine starting issue

A key and two buttons? One for glow plugs and silence the low pressure alarm and one for starting? If so, start with jumping the start button. Turn the key on, press the pre-heat button and jump across the contacts on the back of the push button switch. If it turns over strongly, your start butt

Re: Stus-List Timing Belt

What are you timing? A diesel doesn’t have spark plugs and the valves are on a cam shaft. Neil Andersen 1982 C&C 32 Rock Hall, MD 21661 Subject: Re: Stus-List Timing Belt To my knowledge all yanmar engines are gear driven. Josh Muckley S/V Sea Hawk 1989 C&C 3

Re: Stus-List Engine starting issue

This is a Universal M4-30. When I bought the boat, I had starting issues and cleaned all the grounds and have since replaced the wiring harnesses. It has been 8 years, but the reason I was skeptical of a ground issue is that the engine has started every time on the first try when first warming

Re: Stus-List Timing Belt

To my knowledge all yanmar engines are gear driven. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Fri, Jul 31, 2020, 11:48 Dennis C. via CnC-List wrote: > Kubota based marine engines are also gear driven. > > On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List < > cnc-list@cnc-lis

Re: Stus-List Timing Belt

Kubota based marine engines are also gear driven. On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List < cnc-list@cnc-list.com> wrote: > Rob, > The 2GMF timing is gear driven. There is no timing belt to change. > > -- Dennis C. Touche' 35-1 #83 Mandeville, LA _

Re: Stus-List Timing Belt

Rob, The 2GMF timing is gear driven. There is no timing belt to change. Sam C&C 26 Liquorice Ghost Lake Alberta On Jul 31, 2020, at 9:07 AM, Robert Abbott via CnC-List wrote:  Jeffery, Thank you for the explanation. I have a Yanmar 2GMF which I will assume then is a non-interferen

Re: Stus-List Engine starting issue

Yanmar? Don't forget to service the wiring harness connection near the engine, coat contacts with TefGel and then plug and unplug it several times. Generously wrap electrical tape around it when finished. -- Dennis C. Touche' 35-1 #83 Mandeville, LA On Fri, Jul 31, 2020 at 9:44 AM David Knecht

Re: Stus-List Engine starting issue

It’s more than likely, either a bad ground connection on the engine (possibly on one of the bell housing bolts on the back of the engine) or, after 30 or 40 years the untinned main battery/starter/solenoid wires have corroded up inside the insulation near the connectors. Happened to me a few yea

Re: Stus-List Timing Belt

I believe most if not all Yanmar (or any diesel) are interference engines. I think they recommend 1200hrs or 4 years on timing belts. Best to ask the dealer. On Fri, Jul 31, 2020 at 11:07 AM Robert Abbott via CnC-List < cnc-list@cnc-list.com> wrote: > Jeffery, > > Thank you for the explanation.

Stus-List Timing Belt

Jeffery, Thank you for the explanation.  I have a Yanmar 2GMF which I will assume then is a non-interference engine. Any idea when the timing belt should be changed.e.g. number of engine hours or overall age of the belt? Rob Abbott AZURA C&C 32 - #277 Halifax, N.S. On 7/31/2020 1

Re: Stus-List Timing Belt

Some engines are deemed interference engines wherein the pistons occupy the same space as an open valve. If the timing belt brakes, the pistons become out of sync with the valve train and havoc ensues. With non-interference engines, it’s just a major inconvenience. On Fri, Jul 31, 2020 at 10:34 AM

Re: Stus-List Timing Belt

The only marine diesel engine using a timing belt that i know of is the VW based engine. With the compression ratios of diesels I would imagine they are all interference fit engines. Meaning that the valves open into the space of where the piston will be at a different point the the cycle. Doug

Re: Stus-List Engine starting issue

Especially the grounds… David F. Risch Managing Director Great Benefits USA 401-419-4650 - Direct Line [https://docs.google.com/uc?export=download&id=1iPWGeVIdWdypHSMZPtJX0mxirxyZ4ZBN&revid=0B9uSW32EcB8tZGxlWW1OMlJ6MXU0bmVaaFByQmlSVDMrOWNVPQ] www.greatbenefitsusa.com

Re: Stus-List Engine starting issue

Sounds to me you might have some corrosion in the starter circuit. Check all the battery, ignition, and starter wires for tight and clean connections. Do you hear a click when you try starting without glow plugs? Doug Mountjoysv Rebecca Leah C&C Landfall 39Port Orchard yacht club Origin

Re: Stus-List Engine starting issue

Yanmar? Corrosion in the starting circuit. Clean the connections at the starter and work your way back to the switch. Joel On Fri, Jul 31, 2020 at 10:44 AM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > Twice in the last week, I have noticed an issue that might be a prelude to > a

Stus-List Engine starting issue

Twice in the last week, I have noticed an issue that might be a prelude to a greater problem. Normally, I start the engine by turning on the key, hitting the glow plug button for 30 seconds and then hitting the start button. Never been a problem there. Both times that this has happened, the e

Stus-List Timing Belt

Has anyone ever experienced an issue with a broken timing belt in our marine diesel engines? A club member had his break recently and it destroyed his engine which he choose to replace rather than repairand not sure if it actually could be replaced.   I'll get more info on the exact type o