1/2 flywheel fin missing do i need a new one

[ljw2k]

Hi all and having broken my pullstart i notices 1/2 fin is missing also on my flywheel would this now be useless and i need a new one , would this damage the engine in any way as it would be unbalanced and would it damage any seals etc any info please.

Also is the a way i can check the balance.

 

[renbar]

good question i had the same happen to my last engine stone got in took 1/2 fins off flywheel it still worked ok but not the same down on power and ran a bit lumpy but i wouldnt use one like it again get a new flywheel now or good second hand one from ebay

 

[ljw2k]

Mine runs same no power loss mind you just 1/2 of a single fin and not half the fins missing.

I have been told that none are well balanced anyway when new so 1/2 fin will be fine , i just wanted to double check.

 

[renbar]

half of one fin that should be ok mine was trashed half on one side 3-4 on the other side made a wicked noise when it went then tons of bit came out the bottom of the engine now i wont go on gravel anymore plus it bashes the crap out of alloy it ends up pitted

 

[dwarfy]

The fins help cool the engine down. If they are missing you might experience power loss thru high temps esp when the summer weather comes (in the UK yeah right!!)

 

[ljw2k]

Hi mate and it's only 1/2 fin out 100 and i will be suprised if this is enough to cause overheating problems.

 

[dwarfy]

ah right half of 1 fin I mis read it as half of the fins Too much amber nectar You will be ok then & I don't think balancing will be an issue after all it only an ally casting so not perfect anyway

 

[weeman]

the lighter the better than broken fin should be good for another 1/2 mile an hour...lol

 

[Rossco]

Hi mate and it's only 1/2 fin out 100 and i will be suprised if this is enough to cause overheating problems.

100 fins?????
I must have been ripped off with mine....coz mine only has 38 fins

 

[dwarfy]

100 fins?????
I must have been ripped off with mine....coz mine only has 38 fins

:lol:

 

[ljw2k]

100 fins?????
I must have been ripped off with mine....coz mine only has 38 fins

mg: You really have gone to the trouble and counted how many fins your flywheel has , sorry but i do have a social life and i think you need to get out more often.

 

[Rossco]

mg: You really have gone to the trouble and counted how many fins your flywheel has , sorry but i do have a social life and i think you need to get out more often.

I didn't count all of them....that would be silly......

Only one side............:blush:

 

[Timmahh]

i ve sheared nearly all the inner fins off without much real issue.
1/2 of one fin is nothing.

if your concerned, about it being in balance, you can remove about the same amount of fin on the one 180* across from it.
but i say no worries.

 

[Rossco]

if your concerned, about it being in balance, you can remove about the same amount of fin on the one 180* across from it.
but i say no worries.

You would have to cut a 1/4 off the two opposite as there is an uneven number....19........

I took the time to count em ya know