Briggs Quantum 190cc rebuild?

skyline0964

skyline0964

Member
Looking into possibly rebuilding a 190cc quantum engine? Am I wasting my time with these aluminum blocks? I looked online and can't seem to source a shortblock part# or verify if parts will swap over. Can't even seem to find the date code? Engine is off a 2006 SR4. Thought about trying a 7/8in SB and swapping over the crank? Thoughts? Any help would be highly appreciated. Thank you!

Engine
124T02-0203-b1
25mm x 3-5/32" shaft 1/4in keyway
 
skyline0964 said:
Looking into possibly rebuilding a 190cc quantum engine? Am I wasting my time with these aluminum blocks? I looked online and can't seem to source a shortblock part# or verify if parts will swap over. Can't even seem to find the date code? Engine is off a 2006 SR4. Thought about trying a 7/8in SB and swapping over the crank? Thoughts? Any help would be highly appreciated. Thank you!

Engine
124T02-0203-b1
25mm x 3-5/32" shaft 1/4in keyway
Click to expand...
Unless you want the experience and expense, it would be a hard no. Try to find a good used one maybe.
 
I am curious how you made out? Did you proceed with the engine rebuild or did you repower with an other engine? I am in the same or similar situation right now and if I can get a decent Connecting rod and piston at a good price I would prefer to rebuild but having trouble finding parts at a reasonable price. Inflation and likely supply chain issues are real in this sector of the economy.
 
skyline0964 said:
Looking into possibly rebuilding a 190cc quantum engine? Am I wasting my time with these aluminum blocks? I looked online and can't seem to source a shortblock part# or verify if parts will swap over. Can't even seem to find the date code? Engine is off a 2006 SR4. Thought about trying a 7/8in SB and swapping over the crank? Thoughts? Any help would be highly appreciated. Thank you!

Engine
124T02-0203-b1
25mm x 3-5/32" shaft 1/4in keyway
Click to expand...
How much play is in the piston when installed in the cylinder?

Is the cylinder scored badly?

Parts show to be available, but they are expensive.

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Last edited:
There is no perceivable play in the piston. If I have it apart I usually like to replace the rings on an older engine. If not too expensive.
 
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