Bad Motor

[Justshootme84]

I think I messed up my motor in the 84 Bronco today. (

It hasn't rained here in 7 weeks, and I took the Shaker assembly off to get the rig inspected. Just using an open K&N element air filter for now. Well, it rained several inches yesterday and today, and in a rush to move the Bronco indoors I think some water got into the motor. It sounds like a bent valve, but may be a burnt piston or bearing knocking. No sign of water in the oil, and I'm going to pull the plugs tomorrow to check them out. Cross the fingers that it's just some carbon on top of one of the cylinders, since my Chevy does the same thing now and then.

I am working on picking up a 500+HP 351Cleveand, but would need to beef up the rest of the drivetrain before running that motor. [-o<

 

[Seabronc]

Had a similar problem a couple of weeks ago. It was running rougher than a cob. It rurned out to be a popped exhaust valve spring.

Good luck,

>-

 

[walterm]

DAMN YOU VILE FORD!!!!!!!!!!!!!!!!!!!!!!!!!!

 

[Justshootme84]

DAMN YOU VILE FORD!!!!!!!!!!!!!!!!!!!!!!!!!!

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That's how I felt, for about 30 seconds. I know I can get this knock problem solved, with some help from my buds. I still love Fords!!!! :wub:

I pulled the spark plugs today, and they look just fine-no sign of water, oil or misfire. The dipstick shows normal level, good, brown oil. I only had 30 minutes at lunch to work on her, and then had to get back on the tractor, in the rain, until dark:30. I'm hoping it's a piece of carbon off of the valves hammering on top of the piston somewhere, as this happens to my Chevy quite often. Dang cheap gas we have is full of junk, and I haven't used any Techron in the Bronco for a long time. THe motor is an 85 351W H.O. NAPA longblock with less than 20K miles, so I'm hoping whatever it is is not major and can be fixxed this week, JSM84

 

[Justshootme84]

Spun rod bearing. Motor is now a boat anchor.

Edit: A'ight, after mourning over my motor for afew minutes, I decided to go with another engine and keep this one for spare parts. I'm a bit down about missing out on the chance to drive it at our first Jamboree, but am now just that much more determined to build the "Ultimate" Bronco. PLan is to rebuild the C6, NP208, swap axles and strenghten the frame all to handle about 550 HP. I may not get to start much of the work unitl the Fall, but by the end of the year lookout!!! JSM84

 

[Justshootme84]

Update: I talked to a racing bud that has a 350 HP 302 V8 in a dirt track car. There is a remote chance that he can swap this motor into my Bronco over the weekend, with the proper flex plate for my C-6 AT. Pray really hard for me, Amen!!!! [-o<