Is my 500 efi done for the year? Got hot and now hard to start.
#31
Platinum Member
Platinum Member
iTrader: (1)
Since i started flowing and testing injectors as part of my business this year i have seen and heard of at least 5 guys burning up pistons from leaning stuff out from low flowing injectors, every set i tested so far from these instances had 1 or 2 that flowed 20+% LOW, more common than you would think. Makes sense though, hp 500efis and 502 mpis are getting to be 15/16 years old, guys are running injectors that have NEVER been checked for 15+ years, its especially prevelant in stuff guys buy that hasn't ran in a couple years, a couple cans of seafoam is wishful thinking!
#33
Platinum Member
Platinum Member
iTrader: (1)
If one quit completely it would be a different story, boat would have dead cylinder vs a critically lean cylinder still firing which destroys piston,bore and sometimes the block!
#34
Registered
Since i started flowing and testing injectors as part of my business this year i have seen and heard of at least 5 guys burning up pistons from leaning stuff out from low flowing injectors, every set i tested so far from these instances had 1 or 2 that flowed 20+% LOW, more common than you would think. Makes sense though, hp 500efis and 502 mpis are getting to be 15/16 years old, guys are running injectors that have NEVER been checked for 15+ years, its especially prevelant in stuff guys buy that hasn't ran in a couple years, a couple cans of seafoam is wishful thinking!
#36
Registered
iTrader: (2)
Since i started flowing and testing injectors as part of my business this year i have seen and heard of at least 5 guys burning up pistons from leaning stuff out from low flowing injectors, every set i tested so far from these instances had 1 or 2 that flowed 20+% LOW, more common than you would think. Makes sense though, hp 500efis and 502 mpis are getting to be 15/16 years old, guys are running injectors that have NEVER been checked for 15+ years, its especially prevelant in stuff guys buy that hasn't ran in a couple years, a couple cans of seafoam is wishful thinking!
#37
Registered
Thread Starter
Join Date: Dec 2010
Location: Port Deposit Md
Posts: 523
Likes: 0
Received 0 Likes
on
0 Posts
#38
Registered
Thread Starter
Join Date: Dec 2010
Location: Port Deposit Md
Posts: 523
Likes: 0
Received 0 Likes
on
0 Posts
[ATTACH=CONFIG]559298[/ATTACH][ATTACH=CONFIG]559299[/ATTACH][ATTACH=CONFIG]559300[/ATTACH][ATTACH=CONFIG]559301[/ATTACH]
Both engines are fully rebuilt. I still need to get all the attachments installed back on them and get the headers pressure tested. But what a relieve to get this far.
Both engines are fully rebuilt. I still need to get all the attachments installed back on them and get the headers pressure tested. But what a relieve to get this far.