A very strange situation...

[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.

 

[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

 

[primerbulb120]

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.

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.

 

[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.

 

[Dutchtasitc]

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

Thank you Tom that is very helpful

 

[Dutchtasitc]

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.

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?

 

[Dutchtasitc]

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.

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!!!

 

[BlazNT]

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

 

[Dutchtasitc]

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

Hello BlazNT

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





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

 

[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.