zetor 3545 hard to start!!

[dave_peters]

I think thermostarts use only a few cc each start. yes, they glow red before they let diesel onto the coil, you should hear a pop when the diesel on the coil ignites, then crank engine and suck Flames into engine. airflow then cools coil and diesel flow stops.
Years ago Perkins had a glass manifold which they filmed for people to see how it worked !!
Dave

 

[zetor3545]

yes dave i see how it works now i rmoved the air hose on my mf and turned the key to heat she went red them pop a nice flame then dragged it in to the engine.

i like the idea of a small tank clean it up and prime it and spray it gold would look a treat i shall have a look to see if i have a tank around here.

matthew

 

[dave_peters]

Matthew, I notice that you may weld a nut onto the manifold... before you try it check that the manifold is steel !! A lot of zetor inlet manifolds that I have come across are Aluminium.
From memory, which may be wrong, I think most thermostarts are 3/4" BSP thread.
Dave

 

[zetor3545]

dave i checked the manifold is steel i didnt really remember.

well to prove the point that the thermostat will work still havent got round to getting one.

i have been holing the blow lamp in front of the air manifoldand getting the old man to crank her over. she starts 2 turns.

i can get a manifold heater with fuel injection problemis i have to get a nut and the pipe which fits it. but i will do.

matthew

 

[treaney]

Hello.
the best glow plugs are with fuel injection
Just fit it to return pipe from injektors or from fuel tank.
On my old Ford 2000 its a small tank for glow plug, but on my zetor 9540 its fitted from bottom of fuel tank with a pipe down to manifoild.
Now before winther i also must fit one on my crystal i bought tree weeks ago.
Sorry for my bad english but i hope you understand

Now I'm really confused....

I thought (maybe mistakenly) the reason that the MF35 had the glow plug was because it was indirect injection (older design, lower compression ratio, less complete burning of fuel, lower injection pressure) and the reason that my Crystal 8011 doesn't need a glow plug is because it is direct injection. I have always admired the way the Crystal starts first time on a cold morning after being left outside. BTW "cold" by Irish standards is -2 or -3 degrees C which I know is sunbathing temp for many of you!

Clarification anyone?

 

[dave_peters]

Yes Tom, you are correct, virtually all indirect diesel engines need extra heat, whether they have in cylinder glows or in manifold systems.
Dave

 

[dave_peters]

Yes Tom, you are correct, virtually all indirect diesel engines need extra heat, whether they have in cylinder glows or in manifold systems.
Dave

 

[per_ola]

here in norway the most of tractors is delivered with a type of glow plugs as standard.its only old zetor with cold start button you can start in minus 20celsius without glowing (and some old valmet). Here we also fit on block heater.

I have no chanse to start my old 8011 without using block heater in minus 10celsius. Must put on a glow plug one day.

 

[treaney]

The Fordson Major E27N with the 6 cylinder Perkins P6 (TA) engine also had a excess fuel device (cold start button). I have seen these left outside for years, get a quick check to make sure no water is lodged anywhere, a fresh battery and bingo - away she goes!

It impressed me anyhow...

 

[dave_peters]

The P6(TA) that I knew in the E27N and the 744D Massey had both Excess fuel and Ki-gas cold starting systems and usually took around 20 seconds of cranking before they would fire on a cold morning, so you must have seen one of the few that was a good starter. They had line bored crankshafts and whenever the crank was overhauled or new pistons were fitted the pistons had to be assembelled in the block and the height above the block measured accurately ; them the pistons were taken out and turned down on a lathe to, I believe, 3 to 5 '000 below the block height, any more and you had endless trouble starting and any less and there was a risk of the pistons hitting the head when the conrods expanded during running. Of course the compression could also be reduced if the valves were ground enthusiastically .
We've got life simple now .
Dave

 

[zetor3545]

i have found the fault!

but im not happy!

i removed the sump and removed the conrod caps and could move the piston up and down number 1 was nice and stiff in the bore .number 2 is the coward push it up in the bore it will fall down under it own weight. number 3 i have not tried yet.

looks like rings are on the ajenda!

matthew

 

[alan]

Did you have the valves shut when you tried number 2 ? The best & only way to check compression is with a compression tester.

 

[zetor3545]

ye i checked that removed the rocker cover and put both valves shut then i tried it . down she came!!!

i have ordered up rings and head gaskets!

matthew