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#110500 28/01/21 06:28 PM
Joined: Jan 2015
Posts: 1,233
Likes: 32
speedy Offline OP
Junior Technician
I was picking up something from a lady with a very orderly shed full of junk.
I just had a hunch there might be a mower in there.......
Bingo a Massport Mulch and mow, with a broken base hole......
She said the motor was good. Should be easy to weld in a plate.........
Can't wait to get started...
Sometimes you have just got to open your mouth........
speedy

Attached Images
Massport1.jpg (315.46 KB, 96 downloads)

........................Keep your blades sharp......................
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Joined: Jan 2016
Posts: 7,427
Likes: 135
SENIOR TECHNICIAN
Hi speedy,
not sure how that could have happened, l would say 2 bolts must have broken and then what caused it, bar blade hit something

Joined: Feb 2006
Posts: 4,670
Likes: 163
SENIOR TECHNICIAN
I hope you're good at aluminium welding speedy. That's an aluminium base.


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Joined: Jan 2016
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SENIOR TECHNICIAN
MF,
there is one thing you are never short of and that is 4 stroke bases, always mountains of them to be had, motors die on those often before the bases give up. It is the reverse with the Victas

Joined: Feb 2006
Posts: 4,670
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SENIOR TECHNICIAN
Haha Norm, four stroke Victa's are a handy source of bases for two strokes -Powertorques anyway.


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Joined: Sep 2015
Posts: 1,996
Likes: 137
SENIOR TECHNICIAN & HISTORIAN
Hi speedy ,Norm and Mf

I think it's a steel base Mf ,you can tell from the rear discharge door hinges .

Joined: Jan 2015
Posts: 1,233
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speedy Offline OP
Junior Technician
Yes it's steel. The back cross bar is missing, and a few cracks....
I have an Bolens/Massport aluminium base that I'm fitting the engine to.....
Too much work on the old base.
speedy


........................Keep your blades sharp......................
Joined: Jan 2016
Posts: 7,427
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SENIOR TECHNICIAN
MF, I always get excited when I come across a Victa with a 4 stroke on it. This gives me a 4 stroke to put on one of the countless 4 stroke bases here and because it had a 4 stroke on it they usually haven't done a lot of work so unless the base is rusted they are in good condition and often the wheels are good as well, not all flogged out as you usually get with the 2 strokes

Joined: Jan 2015
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speedy Offline OP
Junior Technician
Up early and put it together....
It was missing a exhaust bolt. I tested no spark.
Took coil off, dug one out of the box.... then noticed throttle at stop position......
Moved it and had spark................durrrrrr....
Put a Victa base plate , sharpened blades..
Mowed the back lawn, changed oil and added oil treatment.... it runs smooth and pretty quiet...
cheers speedy

Attached Images
Massport1.jpg (366.96 KB, 56 downloads)
massport2.jpg (399.17 KB, 56 downloads)

........................Keep your blades sharp......................
Joined: Jan 2016
Posts: 7,427
Likes: 135
SENIOR TECHNICIAN
Good one speedy, another mower saved from landfill or the scrapper

Joined: Feb 2006
Posts: 4,670
Likes: 163
SENIOR TECHNICIAN
Good decision moving it over to a good base.
I hope it doesn't have the dreaded bar blade though.


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Joined: Jan 2015
Posts: 1,233
Likes: 32
speedy Offline OP
Junior Technician
No MF , I put a Victa base on it , one with the space for those lugs....
cheers speedy


........................Keep your blades sharp......................
Joined: Feb 2006
Posts: 4,670
Likes: 163
SENIOR TECHNICIAN
Swing back or bust...literally!


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Joined: Jul 2018
Posts: 2,082
Likes: 80
SENIOR TECHNICIAN
Bit late to the conversation regarding the cracking of masport bases, but the main reason is the engine, followed by the blade carrier. Have seen at least 20 of these now that have done it.

Masport cheaped out on the steel thickness and paired with the comparable roughness of flat head briggs saw a rapid cracking of decks in several main locations; the rear left and front right engine mounts, the rear left about 5cm infront of the wheel (where the side begins to curve around)

The decks issues are compounded by their propensity to lose the rear 'spreader bar'. This places undue stress on the rear end, causing further left rear arch cracking and eventually the metal behind the rear axle to give way; meaning the rear axle pulls out of the deck.

Seems more common with the quickcut, but in the last few month have seen more of the quadcut models doing it (which I think speedy's would have been) - maybe it has just taken longer for the inevitable to happen

Seems now the OHV briggs are on the decks they are less susceptible

Last edited by Tyler; 31/01/21 06:35 PM.
Joined: Feb 2006
Posts: 4,670
Likes: 163
SENIOR TECHNICIAN
Rust seems to be the bane of Victa bases, not cracking, despite the very vibratory 2 stroke.


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Joined: Jul 2018
Posts: 2,082
Likes: 80
SENIOR TECHNICIAN
MF, I think the decks are even thinner than Victa's - Masport don't say how thick the deck is on the 18 inch in the brochure, but the 19in is 1.6mm steel. All they say is the 18in is made of 'durable steel'.

Pair thin steel with possibly poor heat treatments (too much hardness and not enough toughness) in the chinese factory and that could be the causes of brittle failure.

Not sure how thick the Victa decks are, but I am quite sure a victa with a 450 briggs is heavier than a masport with a 450 (I try to avoid picking up mowers on my own)

But then you have a bigger blade carrier causing +400ish grams over the masport quickcut.

I do know a masport of this age with a quickcut bar will lift off its front wheels once the catcher is full, a victa wont.

Norm's solution of Talon bases for PT seem to be the best alternative as they are thick and have less rust traps

Joined: Sep 2015
Posts: 1,996
Likes: 137
SENIOR TECHNICIAN & HISTORIAN
Hi Tyler ,Mf ,Speedy and Norm

I don't think the bases crack just because of metal thickness ,I've thrown out over a hundred cracked
bases ,Masport steel / Alloy ,Rover steel / Alloy ,Talon steel ,Victa steel / alloy ,Electrolux Alloy ,etc and it
doesn't make a difference what engine is on the bases ,all have cracked in the same places ,I've noticed the
main thing that cracks the base is when the end of the crank is out of balance ,eg bent crank ,bent blade carrier ,
one broken blade ,I see a lot of mowers that one blade will half break off and the owner will still mow with one
blade ,once the rotating mass is out of balance it will start to crack the engine mounting position on the base as well.

The rear spreader bar should not be bent or loose as this will allow the base to flex and crack, so .in my
opinion most bases crack because of negligent owners who don't maintain the mower correctly as I've had a lot
of old mowers that have been looked after and those bases have not cracked but the same mowers
crack when owners break a small piece of one blade and continue to use the mower.

The design of certain mower handles can help to support the base ,which will add strength to the base.

Cheers
Max.


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