05-18-2010, 05:55 PM #1
Piston Wash Evaluation Needed - GP1200
What do you guys think of this wash on #3 (The first picture)? I just got this shortblock in. The engine turns over fine by hand but I haven't run compression numbers yet. I was told 120,120,120. Does it look lean to you want about the other pistons?
05-18-2010, 05:57 PM #2
doesnt look like there is much wash on the bottom two
05-18-2010, 06:02 PM #3
Adam, #3 is wet, the others are lean. I would start looking at your carbs. Any carb work done?
05-18-2010, 07:29 PM #4
05-18-2010, 07:37 PM #5
is this the one you grabbed from the guy in NJ ? ( or who ever it was you had mentioned to me?) I decided another route..... Hope it worked out ok for you.
05-18-2010, 07:44 PM #6
05-18-2010, 10:37 PM #7
If it was a trade make sure the crank is good and the cylinder bores.
Pull the cylinders and see what they look like a and what the piston walls and rings look like.
If theres no deto on the pistons or any obvious damage to the pistons then your golden lol.
If the motor is torqued/sealed properly and you have your carbs set rich you will have nice wash real quick.
Heres a pic of some wash
Wash is on the outside edge on top of the piston.
05-18-2010, 10:40 PM #8
Your 1st pic is a 760 piston and its relatively new compared to the other two.
2 and 3 are originall pistons I would say and 1 is a new piston.
05-18-2010, 10:44 PM #9
Hope it works out for you....
I just didn't feel comfortable with the deal - even though it would have only cost me around $800 with the repairs it already needed.
Seems like he was being straight with me about what it needed, which of course, is always good
Thanks for hooking me up, either way!
And I may have paid 2 times as much, but have a warranty to boot and no major work to do, just attaching everything and droppin' it in.
You putting this in a GP1200 right ?
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