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A very strange situation...

#1

D

Dutchtasitc

Hello All,

Apologies if this post is in the wrong place. I am a brand new member and this is my first post :) so please be gentle.

That being said I have a very strange situation indeed...


I bought my first petrol mower last weekend. Nothing fancy and cost me 10 bucks! It wasn't running however I am a keen mechanic (I said keen not experienced) and thought I would be able to get it running asap as my garden is now nearly as tall as me :)

It is a Flymo Quicksilver 46S (2004) or so I thought. Upon further inspection on the pull-start cover it says Qualcast Trojan I did some research and I believe it is a Trojan 16 or at least the engine is anyway.

The previous owner also couldn't get it started and the carb has been replaced however there is no PCV on the engine but the carb does have a PCV? Petrol reservoir is above the carb and setup looks like a Tecumseh engine (is the a B&S? Im not sure this mower is so mixed up!)

So my problem is it wont start... Prime it and glug glug stop... I have had smoke and heat so obviously wants to fire but I think the fuel feed is not happening correctly due to the phantom PCV.

I would like to know how to resolve the issue at my best guess I would plug up the PCV as the engine does not seem to have a fixing for the pipe to connect to, but I am thinking it is not going to be that simple.

Its had new fuel and new carb obviously I've also had a new plug in. Gaskets seem pretty shot so I'm going to replace them but I don't think gaskets would completely stop it running? Not 100% and getting pretty frustrated breaking the starter every half hour so though I would ask some more experienced minds. The pull start housing is now cracked from the 1 zillion times I've tried to start the damn thing lol.

Any advice would be very much appreciated as I'm not one to quit but seem to be breaking more than I am fixing at this point.


#2

P

Pumper54

I know nothing about that mower but Google can be your friend at times:
http://www.manualsdir.com/manuals/207031/qualcast-16_18.html

http://199.223.235.22/trojan/trojan-16-lawnmower-engine-manual.pdf You have to "sign up" at this website to be able to read the manuals.

Hope that helps you
Tom


#3

primerbulb120

primerbulb120

Dutchtasitc said:
Hello All,

Apologies if this post is in the wrong place. I am a brand new member and this is my first post :) so please be gentle.

That being said I have a very strange situation indeed...


I bought my first petrol mower last weekend. Nothing fancy and cost me 10 bucks! It wasn't running however I am a keen mechanic (I said keen not experienced) and thought I would be able to get it running asap as my garden is now nearly as tall as me :)

It is a Flymo Quicksilver 46S (2004) or so I thought. Upon further inspection on the pull-start cover it says Qualcast Trojan I did some research and I believe it is a Trojan 16 or at least the engine is anyway.

The previous owner also couldn't get it started and the carb has been replaced however there is no PCV on the engine but the carb does have a PCV? Petrol reservoir is above the carb and setup looks like a Tecumseh engine (is the a B&S? Im not sure this mower is so mixed up!)

So my problem is it wont start... Prime it and glug glug stop... I have had smoke and heat so obviously wants to fire but I think the fuel feed is not happening correctly due to the phantom PCV.

I would like to know how to resolve the issue at my best guess I would plug up the PCV as the engine does not seem to have a fixing for the pipe to connect to, but I am thinking it is not going to be that simple.

Its had new fuel and new carb obviously I've also had a new plug in. Gaskets seem pretty shot so I'm going to replace them but I don't think gaskets would completely stop it running? Not 100% and getting pretty frustrated breaking the starter every half hour so though I would ask some more experienced minds. The pull start housing is now cracked from the 1 zillion times I've tried to start the damn thing lol.

Any advice would be very much appreciated as I'm not one to quit but seem to be breaking more than I am fixing at this point.
Click to expand...

If the carb and muffler are on the same side of the engine, it should be a Tecumseh. If the primer bulb is shaped like an hourglass, it is definitely a Tecumseh. If the carb and muffler are on opposite sides of the engine, it should be a Briggs and Stratton.

Spray some starting fluid into the air intake and try to start it.


#4

R

Rivets

Both the Qualcast and Flymo use a Briggs engine with the tank mounted plastic vacu-jet carb. I not familiar with PVC, please explain. I'm betting your problem is with the diaphragm between the carb and tank. This diaphragm brings the fuel into the carb and if it is old, cracked, or loose it will not work properly.


#5

D

Dutchtasitc

Pumper54 said:
I know nothing about that mower but Google can be your friend at times:
http://www.manualsdir.com/manuals/207031/qualcast-16_18.html

http://199.223.235.22/trojan/trojan-16-lawnmower-engine-manual.pdf You have to "sign up" at this website to be able to read the manuals.

Hope that helps you
Tom
Click to expand...


Thank you Tom that is very helpful :)


#6

D

Dutchtasitc

primerbulb120 said:
If the carb and muffler are on the same side of the engine, it should be a Tecumseh. If the primer bulb is shaped like an hourglass, it is definitely a Tecumseh. If the carb and muffler are on opposite sides of the engine, it should be a Briggs and Stratton.

Spray some starting fluid into the air intake and try to start it.
Click to expand...

Yup carb and muffler are on the same side so that clears that up it is definitely a Tecumseh :) which is half the battle won.

Ok on to problem #2...

#2 Carb has two connections for pipes but the lawnmower only has 1? Do i have the wrong carb for the engine?


IMG_8443.JPGIMG_8442.JPGIMG_8445.JPG


#7

D

Dutchtasitc

Rivets said:
Both the Qualcast and Flymo use a Briggs engine with the tank mounted plastic vacu-jet carb. I not familiar with PVC, please explain. I'm betting your problem is with the diaphragm between the carb and tank. This diaphragm brings the fuel into the carb and if it is old, cracked, or loose it will not work properly.
Click to expand...


Hi Rivets,

Thats just my issue the carb doesn't have a diaphragm? Im confused to say the least. Hopefully soon I will work out whats going on with the help of the wonderful guys on this forum :)

Thanks for your reply, and thanks to everybody who has weighed in so far. It is very much appreciated. Thanks guys!!!


#8

BlazNT

BlazNT

We desperately need the model number off the engine. Look all over even under the engine cover. It is there somewhere.


#9

D

Dutchtasitc

BlazNT said:
We desperately need the model number off the engine. Look all over even under the engine cover. It is there somewhere.
Click to expand...

Hello BlazNT

I have attached the details I managed to find...

IMG_8377 (1).JPG

IMG_8381 (1).JPG

There are no other details on the mower, no engine stamps at all. Hope this helps.

I will have another good look at first light. I also thought there must be an engine stamp somewhere. Just couldn't find it. Ill give the block a good clean tomorrow and see it it turns up.

Thanks


#10

primerbulb120

primerbulb120

That is definitely a Tecumseh engine, I can tell by the second picture.

There should be a decal on the recoil starter (part in the second picture) with the engine model number.


#11

primerbulb120

primerbulb120

Rivets said:
Both the Qualcast and Flymo use a Briggs engine with the tank mounted plastic vacu-jet carb. I not familiar with PVC, please explain. I'm betting your problem is with the diaphragm between the carb and tank. This diaphragm brings the fuel into the carb and if it is old, cracked, or loose it will not work properly.
Click to expand...

The engine on this mower is a Tecumseh, not a Briggs. It doesn't have a carb diaphragm.


#12

D

Dutchtasitc

primerbulb120 said:
That is definitely a Tecumseh engine, I can tell by the second picture.

There should be a decal on the recoil starter (part in the second picture) with the engine model number.
Click to expand...

Im sorry, no such luck. Other than the green Qualcast Trojan sticker there are no other marks or stickers on the starter housing :(


#13

D

Dutchtasitc

Ive been looking online for a while now at images and videos of tecumseh engines and all the ones that I have seen have a PCV connection and 2 pipes coming from the carb which doesn't help me much as my carb has 2 connections for pipes but the actual engine doesn't seem to have anything. 1 pipe from the fuel and thats it?

Spooky lool


#14

D

Dutchtasitc

Ok after struggling for engine numbers for this mower I thought I might be able to identify the engine number or possible numbers by matching the gasket sets.

As I have had the engine in bits I thought I could visually match the gaskets and hopefully gain some kind of insight.

I was just about to quit when I came across this set:

IMG_8454.PNG

My best guess is that this is the gasket set for the engine I have.

The gasket to the far right at the bottom next to the O gasket was not present in any of the other kits I saw and I viewed quite a few and it is definitely one from my mower engine the unorthodox shape is quite easily recognised. Its from the inlet manifold connected to the engine side of the carb.

The other gaskets can also be accounted for excluding the largest which I am guessing is the block (bottom end) the only one I have not removed from my engine.

I know that this is a ridiculous way to try to identify an engine code however I don't seem to have many options at this point.

Going by the gasket voodoo the engine code could be either:

HS50, HSSK or LH195

If anyone (or google) knows anything about any of these codes I could cross reference info with the engine I have and possibly rule out codes or positively match codes depending on the info found.

E for effort eh? I guess time will tell if its genius or el'stupido lol


#15

primerbulb120

primerbulb120

So, what do you need the model number/code for again? (I forgot):laughing:


#16

D

Dutchtasitc

primerbulb120 said:
So, what do you need the model number/code for again? (I forgot):laughing:
Click to expand...

Im trying to identify if the carb that is on the engine is the correct one. It has two connections a fuel line and a PCV however I cannot find a PCV for it to connect to on the engine and cannot get it started after priming.

The guy I got it off replaced the carb so possibly the wrong one, which wold be ok if i knew what the right one for it was... Hence the engine code lolcry


#17

primerbulb120

primerbulb120

If you could post some pictures of the whole engine and of the carb, that would help a lot. :smile:


#18

BlazNT

BlazNT

Dutchtasitc said:
Yup carb and muffler are on the same side so that clears that up it is definitely a Tecumseh :) which is half the battle won.

Ok on to problem #2...

#2 Carb has two connections for pipes but the lawnmower only has 1? Do i have the wrong carb for the engine?


View attachment 28791View attachment 28792View attachment 28793
Click to expand...

never mind it is getting late and i'm not thinking right.


#19

D

Dutchtasitc

Just downloaded this badboy

View attachment tecumsehcarburetormanual.pdf

And couldn't see a carb with 2 connections for fuel and PCV... Strange because the horizontal shaft engines I saw online definitely had PCV and fuel connections.

Its 3am here and my eyes have gone square so I may have missed it. Will have another look tomorrow when my brain is functioning :)


#20

D

Dutchtasitc

BlazNT said:
You don't have 2 holes for the engine you have one for the engine and one for the air cleaner.
Click to expand...


So am I right in thinking 1 pipe goes from carb to fuel tank

And the other goes from the carb into the air filter?

Would explain alot!


#21

D

Dutchtasitc

BlazNT said:
never mind it is getting late and i'm not thinking right.
Click to expand...

No problem my IQ is falling by the minute. Thanks for your thoughts anyway. Any input is helpful, so appreciate it


#22

primerbulb120

primerbulb120

Okay, I think I've got it. If I am correct, this is your issue:

1. You have a PCV tube coming from the engine, but can't figure out how to hook it up to the carb.
2. The carb has an inlet for a PCV, but there's no way to hook it up.


On some Tecumseh engines, the PCV tube coming from the engine DOES NOT hook up to anything. I know. I have a Tecumseh like this.

The carb you have is not the right one for your engine (it has a PCV inlet) but that shouldn't keep the engine from running.

Spray some starting fluid into the air intake and try to start the engine.


#23

primerbulb120

primerbulb120

The inlet on the top of your carb doesn't hook up to anything on this engine. Just close it off. The inlet on the side of the carb is for your fuel line (from gas tank to carb.)


#24

D

Dutchtasitc

primerbulb120 said:
Okay, I think I've got it. If I am correct, this is your issue:

1. You have a PCV tube coming from the engine, but can't figure out how to hook it up to the carb.
2. The carb has an inlet for a PCV, but there's no way to hook it up.


On some Tecumseh engines, the PCV tube coming from the engine DOES NOT hook up to anything. I know. I have a Tecumseh like this.

The carb you have is not the right one for your engine (it has a PCV inlet) but that shouldn't keep the engine from running.

Spray some starting fluid into the air intake and try to start the engine.
Click to expand...

Hello,

I wish this was the case. In fact it is the opposite. The Carb has an inlet for a PCV but the engine does not seem to have one. I've sprayed about 2 gallons of fluid into the carb. Snapped the starter cord 50 times and now the starter has failed... :( hence my requests on here...

Anyone have any ideas?

Thanks again for your continued support guys. This ones a doosie!


#25

D

Dutchtasitc

primerbulb120 said:
The inlet on the top of your carb doesn't hook up to anything on this engine. Just close it off. The inlet on the side of the carb is for your fuel line (from gas tank to carb.)
Click to expand...

Hello,

Thank you for the advice. I though of doing this but why on earth would the carb have an extra hole in the side if it did not need it? No stopper, or screw to close? And would completely ruin the vacuum needed to draw fuel into the engine?

I will try this as like I said I am stick for ideas but I think this is a bodge it and scarper solution and would prefer to have a reliable mower with the right components.

Guys thanks again for all your suggestions. They have all been really helpful :)


#26

D

Dutchtasitc

primerbulb120 said:
Okay, I think I've got it. If I am correct, this is your issue:

1. You have a PCV tube coming from the engine, but can't figure out how to hook it up to the carb.
2. The carb has an inlet for a PCV, but there's no way to hook it up.


On some Tecumseh engines, the PCV tube coming from the engine DOES NOT hook up to anything. I know. I have a Tecumseh like this.

The carb you have is not the right one for your engine (it has a PCV inlet) but that shouldn't keep the engine from running.

Spray some starting fluid into the air intake and try to start the engine.
Click to expand...

Do you know what the right carb is? This would be very helpful.

Thanks


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