Crank shaft / con rod / slide bars
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Crank shaft / con rod / slide bars
Morning all,
Not sure if this loaded the first time so apologies if it appears twice.
Three questions:
1) How much end float should the crankshaft have? I have the got crankshaft to turn but the end float seems excessive to me at 0.5mm
2) The con rod strap bolts are almost impossible to fit as if the strap is not long enough. Big ends fit nicely in the strap etc so no interference. Now i have the bolts test fitted the wedge drops right down to the bolt as if the big end is completely worn out? I can weld the wedge up a bit and machine back but is this normal?
3)are the slides designed to be slightly bowed? I can get a 0.75 mm feeler gauge between a straight edge at the centre point along its length?
Many thanks for your advice in advance,
Neville
Not sure if this loaded the first time so apologies if it appears twice.
Three questions:
1) How much end float should the crankshaft have? I have the got crankshaft to turn but the end float seems excessive to me at 0.5mm
2) The con rod strap bolts are almost impossible to fit as if the strap is not long enough. Big ends fit nicely in the strap etc so no interference. Now i have the bolts test fitted the wedge drops right down to the bolt as if the big end is completely worn out? I can weld the wedge up a bit and machine back but is this normal?
3)are the slides designed to be slightly bowed? I can get a 0.75 mm feeler gauge between a straight edge at the centre point along its length?
Many thanks for your advice in advance,
Neville
Gomer- Number of posts : 18
Location : Worcestershire
Registration date : 2018-01-11
Re: Crank shaft / con rod / slide bars
I got my end float down to about 20/25 thou
There is something wrong with your wedges so I would contact STW and slide bars should be straight
There is something wrong with your wedges so I would contact STW and slide bars should be straight
Mark the spark- Number of posts : 389
Location : Edinburgh
Registration date : 2015-04-26
Re: Crank shaft / con rod / slide bars
Thanks Mark
Gomer- Number of posts : 18
Location : Worcestershire
Registration date : 2018-01-11
Re: Crank shaft / con rod / slide bars
I had a similar issue with the cotter being fully up before tightening up - the problem was the big end shell, it had been machined incorrectly.
Capricorn1- Number of posts : 119
Location : West Yorkshire.
Registration date : 2013-07-22
Con rods
Thanks Capricorn. I'll take it up with STW again.
Gomer- Number of posts : 18
Location : Worcestershire
Registration date : 2018-01-11
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