700 Top End rebuild questions
#1
Registered
Thread Starter
Join Date: Aug 2004
Location: Deatsville, AL
Posts: 349
Likes: 0
Received 0 Likes
on
0 Posts
700 Top End rebuild questions
Looking for some true experiance with what I should/need to do with my 700's. I just found out that I have to do the top ends on my motors cause I have 220 hrs. Being told that there is a must 250 top end per mercury. Any thoughts/experiance/help... thanks
#2
Registered
Give Eddie Young a call.
#3
Registered
Platinum Member
Join Date: Nov 2006
Location: Farmington MI/ Ft.Myers Beach FL
Posts: 157
Likes: 0
Received 0 Likes
on
0 Posts
HAVE 305 HRS ON 700'S JUST DID LEAK DOWN NO ISSUES NEVER HEARD THAT THERE IS A MUST 250HR TOP END PER MERCURY-- HAD NXT DRIVES REBUILT AT 265HRS BUT SO FAR NO ISSUES WITH MOTORS
#5
Charter Member # 55
Charter Member
There is no rebuild or top end refresh schedule from Merc for the 700sci that I am aware of.
If leak down tests are good, then I'd probably just do valve springs to be on the safe side.
If leak down tests are good, then I'd probably just do valve springs to be on the safe side.
#6
Commercial Member
Commercial Member
Join Date: May 2008
Posts: 830
Likes: 0
Received 0 Likes
on
0 Posts
#7
Registered
Platinum Member
iTrader: (1)
Join Date: Sep 2003
Location: Fort Erie Ontario Canada
Posts: 521
Likes: 0
Received 1 Like
on
1 Post
I think the most important is replacing the roller lifters,rocker arms are usualy okay, valves touched up depending on condition to replace or not,valve springs and head gaskets.IMO But I thought you could go 400 hrs depending how hard your on it.
Joe
Joe
#8
Registered
We just upgraded a set with new Cometic head gaskets, upgraded springs and Crowler rocker arms. Found several weak springs and bad rocker arms. 200hrs on motors.
Last edited by BrettM; 11-18-2011 at 09:12 AM.