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Discussion Starter · #1 ·
Hello, I'm new to this forum and would love some help with my BBF journey. At the moment I'm just trying to get this engine to perform properly, no fancy upgrades just want it to run so I can start using my truck for some work. Currently I believe I'm having issue with my timing chain, possibly loose and needs replaced. Gonna check today how many degrees out it is. But the issue I'm having is these medium duty 370 engines are basically ghost at any parts store. So my question is does most of the engine parts interchange with the 385series engines(370/429/460)? Also if anyone has advice on what timing chain and gear set I should look into for replacement that would be great. If anyone has questions about my engine just ask and I'll tell everything I know. Also if pics are needed please ask I'll take them. Currently my truck will start and idle fine, revs up decently too but once I start driving it, it basically gets castrated. Looses power when trying to climb the slightest of hill. Basically when driving on flat ground I cant get engine rpm over 2k rpm or it will cough and sputter. But it bogs around the block fine at 1000-1500 rpm. But obviously you ain't climbing any sort of hill in that low of rpm and too high of a gear. I have already replaced loads of gadgets and gizmos for the engine, egr valve, dist vacuum advance, dist pick up assembly, rotor, cap, plugs, wires, coil, battery cables, engine to frame ground wire, mechanical fuel pump, fuel hoses, fuel filter, blew air backwards threw tank pick-up just in case there was a clog(nothing), there is probably more I'm forgetting but for the basics I feel I have covered it for a engine tune up.... but I'm still having issues with actually driving the truck. Initial timing is set at 8°-10° btdc I did set it to 6° like the sticker on valve cover said but it purred better at the 8-10° mark so I left it there. That's about all I can think of to include in my post. Please let me know what you bbf pros think?

Thanks,
Mike
 

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Discussion Starter · #2 ·
Ok so I tested the chain slack and it's looking like I'm 14° out so that puppy must be loose as a goose. I hand cranked engine over at crank shaft and got to 0°tdc. Then I had my dad watch rotor and I turned it til it moved and i was at 4°atdc then i turned it opposite way and rotor didnt move until we hit 10°btdc mark. So if I done this test correctly here this must be my issue, correct??

Will a bbf run sitting still fine and run like a weak old man when driving because of a timing chain issue like this?

I'm really just hoping this is the final fix so I can get truck running good to actually use it for making money, cuz right now I'm using it to spend money haha.

But back to my previous question what's a good place to source the parts I need for this repair?

Also any other stuff I should get while I'm getting in this far in that area?
I'm assuming water pump might be a good idea even tho it's not an issue now, but anything else?

Also any good pointers on how I can support engine front since my medium duty application has the front motor mount right at the timing cover area? I do not want to remove engine for this. I don't care how difficult it will be I'm used to difficult mechanical repairs. My truck is a bucket truck and it has the cab rack to protect it from branches. I was thinking if I removed the hood I may be able to rig up a hoist to hold front of engine up while repairing timing issues. Does this sound like a doable procedure? Or if anyone else has any pointers please chime in?

Thanks,
Mike
 

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Same timing set as the HD 429. Crank snout is larger in diameter that a car and medium duty BBF.




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FORD > 1997 > F-700 > 7.0L V8 > Engine > Timing Chain & Component Kit
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Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
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See our products in the Vendor for sale section
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Hello Mike,

We have in stock the correct timing chain set for your Industrial 370 engine. It is a Cloyes double-roller chain set with upper and lower gears & chain, brand new. Contact High Flow Dynamics directly to purchase

Paul
 

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Discussion Starter · #5 ·
Ok so I got some parts in and I was looking at the cloyes timing chain and gear kit I got and the crank shaft gear has 3 positions to set it up for difference performances. So my truck being a bucket truck that will be loaded at times possibly in the 20,000-24,000lbs gvwr, and empty it weighs around 15,000lbs. So my understanding of the 3 positions to set crank/cam timing is that advancing gives low-end torque, and retarding increases high rpm horsepower. So for my application I'm thinking if I advance cam timing I will be able to get my heavy rig rolling faster but still be able to maintain highway speeds(60mph max). And once I reach an incline in roadway I'll be able to pull up it without loosing too much speed or would my speed drop drastically until the low end torque kicks in? Or should I just set it to TDC? I just want to know which option would be best for MY application?? And if you guys have a good explanation of how the different settings would effect MY heavy truck application that would help me understand everything better. Because this is one of those things I want to set it the correct way the first time so I do not have to re-do anything.

Thanks,
Mike
 

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...I was looking at the cloyes timing chain and gear kit I got and the crank shaft gear has 3 positions to set it up for difference performances...I just want to know which option would be best for MY application...Because...I want to set it the correct way the first time so I do not have to re-do anything.
Mike,

The Cloyes timing chain set you purchased with the 3 keyways in the crankshaft gear will not work in your 370 engine.

Paul
 

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Mike,

The Cloyes timing chain set you purchased with the 3 keyways in the crankshaft gear will not work in your 370 engine.

Paul

Thanxx Paul,

My 1st post listed the correct part numbers as well as the note:


Same timing set as the HD 429. Crank snout is larger in diameter than a car and medium duty BBF.






Scotty J. "AKA" The "Mad Porter"

"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
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Discussion Starter · #8 ·
Yeah I done more research on that issue and figured that out. I got the cloyes c-3068 ordered and sending the c-3079 back. It said it was for the big block ford but I guess the 460 is different then the 429 and 370, cuz the 3068 said it fit the both of them.
 

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Yeah I done more research on that issue and figured that out. I got the cloyes c-3068 ordered and sending the c-3079 back. It said it was for the big block ford but I guess the 460 is different then the 429 and 370, cuz the 3068 said it fit the both of them.

I noted above that there are differences between the 370 / 429 HD engines vs. the 429 / 460s used cars and light trucks.

Your question was answered here and the correct part numbers provided a week ago.






Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
Log into Facebook
 
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