Hello,

I am in need of some opinions from those of you with more experience than I, when it comes to internal engine cleaning without tearing down the motor itself.

I just got a 69 Satellite (318) that was sitting for 12 years, tuned it up a bit and it seems to run really good, except for a slight pinging in the motor. I dont know if it is valves or bearings or what. If I really step on it the sound goes away.

My question is should I use a seafoam or some other internal cleaner? My fear is that it will do more harm than good.

Any thoughts would be appreciated.

 

I have recently heard 'not good' things about internal engine cleaning and I found a pretty straight forward article about it. If I am reading this correctly.... it is saying that it may be a waste of time and may cause more harm than good...

I'll attach the link.

http://www.ehow.com/how_2111439_perf...flush-car.html

 

Try the high dollar gas. Run a few tanks and see if that makes a difference. Seafoam and such will make the motor leak at all the seams.

 

Thanks to you both, thats what I was thinking. At this point the gunk may be holding it together.

 

Ping is when the fuel/air mixture is ignited before/after when it is supposed to be. It can usually be fixed with some slight adjustment to the dizzy and/or running higher octance gas which burns longer and more complete.

I would start by filling the tank three times with 93 octane or higher gas and checking the timing.

 

Don't put cleaner in the motor !! I would check the ign timing if it is pinging.
SeaFoam is great for adding to the fuel tank... NOT the motor

 

1/2 qt. transmission fluid for a days worth of easy driving does the trick for my brother and me make sure u put a new filter on it before you add the trany fluid and then change your oil with new filter you will be surprised at the gunk that comes out ans then as an after thought add 2oz of zinc assembly lube or some zinc additive remember todays oils do not have zinc additive in them for " emissions " and too wear out your motor faster

 

after 12 yrs of sitting all the carbon would have loosened from the inside of the block / valve covers so this can cause a dirt problem think about it
trany fluid has a high detergent content and anti corrosive properties