Scottishlad
Member
- Joined
- Oct 30, 2022
- Threads
- 1
- Messages
- 11
Calling for help all the way from the Scottish Highlands!
I recently bought a "spares of repair" ride on from a friend with a 15.5 HP BS intek engine which had thrown a con rod, through lack of lubrication. After assessment I reckoned that a new short block was the most economic fix.
This arrived Friday and i built it up over the weekend with all the old parts transferring without (apparent issue) ... however she wont fire up ....
I checked for spark and fuel and all looks good / valve clearances set (4 thou for inlet and 6 exhaust). 12 thou air gap at flywheel /coil interface
Checking valves clearances again this morning I set TDC with a screwdriver in the bore and just before checking valves I noticed that my flywheel magnets are almost 90 degree behind where I'd expect them to be ( I assume that the magnet and the coil should be more or less in alignment?
(also realised that the exhaust / muffler was noticeably warm despite the lack of running - id put this down to just the compression of the gas but suspect now that I had combustion but just not at the right time.....
Checked the flywheel key way and key and all in alignment with the crank (no sign of damage etc)
Looks awfully like my original flywheel and the new crank are not a match?
My original engine is Model 31 A6 07 Type 01 26 B1 080818ZD
New short Block is Serial 2109028139679 Model 592059A
I'm hoping that if I'm right then Briggs will take the block back or send my a new compatible flywheel ....
Questions -
Where should the flywheel magnet be with respect to the two legs of the coil at TDC ?
Can anyone help to confirm my diagnosis (or provide other hints)
Thanks in anticipation
I recently bought a "spares of repair" ride on from a friend with a 15.5 HP BS intek engine which had thrown a con rod, through lack of lubrication. After assessment I reckoned that a new short block was the most economic fix.
This arrived Friday and i built it up over the weekend with all the old parts transferring without (apparent issue) ... however she wont fire up ....
I checked for spark and fuel and all looks good / valve clearances set (4 thou for inlet and 6 exhaust). 12 thou air gap at flywheel /coil interface
Checking valves clearances again this morning I set TDC with a screwdriver in the bore and just before checking valves I noticed that my flywheel magnets are almost 90 degree behind where I'd expect them to be ( I assume that the magnet and the coil should be more or less in alignment?
(also realised that the exhaust / muffler was noticeably warm despite the lack of running - id put this down to just the compression of the gas but suspect now that I had combustion but just not at the right time.....
Checked the flywheel key way and key and all in alignment with the crank (no sign of damage etc)
Looks awfully like my original flywheel and the new crank are not a match?
My original engine is Model 31 A6 07 Type 01 26 B1 080818ZD
New short Block is Serial 2109028139679 Model 592059A
I'm hoping that if I'm right then Briggs will take the block back or send my a new compatible flywheel ....
Questions -
Where should the flywheel magnet be with respect to the two legs of the coil at TDC ?
Can anyone help to confirm my diagnosis (or provide other hints)
Thanks in anticipation