Dodge73Dart
1973 Dodge Dart Sport restoration
Probably a muffler bearing or something else simple.
Rebuilt 318 install problem
- Thread starter Calipag
- Start date
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superchargeddrt
Well-Known Member
Is it possible that the balancer has shifted on the rubber? Didn't read the whole thread, I appoloapo if someone already suggested this.
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superchargeddrt
Well-Known Member
If it has slipped you can bring the #1 piston to TDC on the compression stroke and draw a line on the balancer next to 0° and use it for your timing mark. If this works then you should replace the balancer..
The OP did check that as well, the whole project snowballed into a nightmare after an ignition module failure.
Calipag
Well-Known Member
UPDATE:
The engine shop just called and told me that at least one of the exhaust lobes on the cam is flat. So I will be pulling the engine again and returning it back to them.
I don't know how this may have occurred? A mechanic mentioned that there may have been too much pre load on the lifters. And I believe member mentioned push rod length.
I guess I'm asking did I do something wrong to cause this or was it the build.
The shop has been great and they are repairing the engine under warranty, I have to pull the motor but I think that's reasonable.
The engine shop just called and told me that at least one of the exhaust lobes on the cam is flat. So I will be pulling the engine again and returning it back to them.
I don't know how this may have occurred? A mechanic mentioned that there may have been too much pre load on the lifters. And I believe member mentioned push rod length.
I guess I'm asking did I do something wrong to cause this or was it the build.
The shop has been great and they are repairing the engine under warranty, I have to pull the motor but I think that's reasonable.
Wow, really hate that happened! I am thankful they are putting it back right for you under warranty though. I figured I’d be the first to ask what kind of oil you were running during break in...
Dodge73Dart
1973 Dodge Dart Sport restoration
Thanks for the
Thanks for the update. Hope your back on the road soon.
Calipag
Well-Known Member
They supplied me with the oil and the zinc additive for the break in.
Best wishes and hoping they get it straightened out quickly, flat tappet cams are terribly fickle anymore. You mentioned an rv cam, what brand did you use?
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PRH
Well-Known Member
I have to believe that all the trouble you had getting it running had a negative impact on the cam break in.
Calipag
Well-Known Member
Calipag
Well-Known Member
Not sure of the brand that they installed. I'm still hoping it wasn't me. I don't think of anything that I did that would have cause this.
I like to see about 2500 during break in with some short cycling to about 3000 rpm. Here is an article that is a must read that lets you know how far up against it we really are with breaking in a camshaft.
Camshaft install tips and tricks
Camshaft install tips and tricks
Calipag
Well-Known Member
Well, here is a photo of one of the two lifters from the 318. I don't have a pic of the cam but it did not fair well at all. Two exhaust valve lobes were wiped. The engine shop believes it was a defective cam. Engine was rebuilt and we installed it this past weekend. Now just a few more finishing steps and I'll be firing it up...fingers crossed!
AJ/FormS
68 Formua-S fastback clone 367/A833/GVod/3.55s
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Hey lookatthat, it was rotating
Wyrmrider
Well-Known Member
Needs to fire on first crank or that's what happens
sorry about that
obviously double check the firing order/ wire routing and advance, still does not fire then you have to check the cam timing
sorry about that
obviously double check the firing order/ wire routing and advance, still does not fire then you have to check the cam timing
Calipag
Well-Known Member
It is funny you say that!
Now I'm gun (cam) shy! It is not firing right up so now I'm throwing in the towel. I'm taking into a shop to have her finished up. I feel like crap doing that but don't want to ruin or damage anything!
It's been a nice Grandfather, Father and Son project. The pic is my father and son getting the engine ready for the install. And then it installed.
The last pic is the engine in the donor car.
It took a few minutes to get our 273 fired up. Fiddled with timing and carb. Probably 15,000 miles later no issues.
Sometimes even a blind squirrel finds a nut.
Not sure who rebuilt it this time, but could they come fire it for you? I hate adding another link in the chain. If you know what I mean??
Great pics of the family.
Sometimes even a blind squirrel finds a nut.
Not sure who rebuilt it this time, but could they come fire it for you? I hate adding another link in the chain. If you know what I mean??
Great pics of the family.
Dodge73Dart
1973 Dodge Dart Sport restoration
Please keep us posted as to what the problem was and what the solution was.
Thanks
Thanks
Dodge73Dart
1973 Dodge Dart Sport restoration
So have you gotten this running yet? And if so, What was the problem?
Thanks
Post 139, wiped some exhaust cam lobes, faulty cam and lifters.
Dodge73Dart
1973 Dodge Dart Sport restoration
I was wondering how the repair went and is it finally running.
Okay, I misunderstood, I am curious myself about how things have progressed and what brand of cam and lifters were used. It could also be a valve spring type or installed height issue, too. If the cam is split pattern, the intakes may be okay but the exhaust could be crowding on lift to the point of over pressure or coil bind and wiping the exhaust lobes out.
Calipag
Well-Known Member
Sorry for not giving a time line. I talked to a few shops and the one I felt most comfortable with was not able to get it in until this Wednesday. So we will be having her towed over there on Wednesday morning!
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