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Timing chain
#1
Hey there guys, as many of you know I have my car in a shop for some accident repairs. The water pump was damaged, so they pulled it off and discovered the timing chain is very stretched out and needs to be replaced.
I’m very surprised by this because it’s only supposed to hav about 12k miles on it since the engine was rebuilt. What would cause this? Cheap ass chain, way more miles on it than I was told or possibly the wrong one?

run_horse Run Horse Run!
John 72 Q Code
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#2
Cheap chain or more miles. Is it a double roller chain? I would make that upgrade if I were you.

'73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

'73 F code convertible. Bright red. Needs total restore. (IE HOT MESS)

- Jason
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#3
(11-16-2018, 09:05 AM)73pony Wrote: Cheap chain or more miles. Is it a double roller chain? I would make that upgrade if I were you.
It’s a single. That’s a good idea. 
They also found a lot of rust inside of the radiator and block.

run_horse Run Horse Run!
John 72 Q Code
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#4
some rust inside the water passages isn't abnormal. a lot of rust would suggest that it wasn't run with the proper mixture of antifreeze. They should be able to flush it. Are you running an aluminum rad or stock style? I am still running my original 73 rad and it works great.

'73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

'73 F code convertible. Bright red. Needs total restore. (IE HOT MESS)

- Jason
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#5
Ya I’m running stock radiator. There is more than normal rust in it. Like you said must have used the wrong mixture of antifreeze cause it was pretty nasty. It always ran in the normal range of my temp gauge. The only time it would get a bit hot was if I was idling in traffic for awhile, but the temp would always come back down to normal.

run_horse Run Horse Run!
John 72 Q Code
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#6
There is only one word (well maybe two words) in timing chains, and that is rollmaster. i use the ones with the iwis chains.
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#7
(11-16-2018, 11:38 AM)barnett468 Wrote: There is only one word (well maybe two words) in timing chains, and that is rollmaster. i use the ones with the iwis chains.
Is rollmaster a brand name?

run_horse Run Horse Run!
John 72 Q Code
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#8
I have always ran a 50 / 50 mix of antifreeze, Prestone, and always use distilled water so you do not have a bunch of minerals in there. My truck just rolled over 288,000 miles this week and I have never changed the antifreeze or replaced a hose, lol. I have never taken the radiator cap off. One day soon it will die.
Normal timing chain will usually go 100,000. The MOD Ford engines the Ford dealer told me just to run it they had never replaced one.
When I drive an automatic and in traffic I always slide in neutral that way you do not build heat up in the transmission that is also cooled by the radiator.
My 351 is bored .050" over with cam and air cond. and it does not overheat with auto.


When a man is in the woods and talks and no women are there is he still wrong??
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David
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#9
(11-16-2018, 12:01 PM)Carolina_Mountain_Mustangs Wrote: I have always ran a 50 / 50 mix of antifreeze, Prestone, and always use distilled water so you do not have a bunch of minerals in there. My truck just rolled over 288,000 miles this week and I have never changed the antifreeze or replaced a hose, lol. I have never taken the radiator cap off. One day soon it will die.
Normal timing chain will usually go 100,000. The MOD Ford engines the Ford dealer told me just to run it they had never replaced one.
When I drive an automatic and in traffic I always slide in neutral that way you do not build heat up in the transmission that is also cooled by the radiator.
My 351 is bored .050" over with cam and air cond. and it does not overheat with auto.
I do the same for antifreeze as you, but I think the PO used lake water instead of distilled water. Lol
The timing chain was stretched so bad I could hear it, but I kinda thought it was the water pump going bad. It made some noise when I would first start it up, but once it warmed up it always went away.
I do the same in traffic to, slide it into neutral and would always bring the temp down a bit.

run_horse Run Horse Run!
John 72 Q Code
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#10
(11-16-2018, 11:50 AM)jpaz Wrote:
(11-16-2018, 11:38 AM)barnett468 Wrote: There is only one word (well maybe two words) in timing chains, and that is rollmaster. i use the ones with the iwis chains.
Is rollmaster a brand name?

yes.

you can ask them if they make one with an iwis chain without the torrington bearing if you don't want to tun the bearing.


http://www.romacusa.com/downloads/RM_Tim...ations.pdf
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