Issues with C4 and new Blueprint 306

[deltabronco]

How loud is the clicking noise? Are you 100% positive it's coming from the transmission? Use a stethoscope type device to pinpoint the clicking noise. Wooden dowel works just as well. I'll bet that it's not the transmission, it could very well be an exhaust leak. Hoping not a lifter tick with a new motor.

On the motor side, get your vacuum gauge and timing light out and see if you can't get those numbers bumped up (advance timing should raise your vacuum). Test drive it and see if it improves at all.

Also, have you checked that your choke is opening and not stuck or hung up on something?? Wouldn't be the first I've seen that happen for sure.

Finally, where is your temp sensor mounted? Have you checked your gauge (ground out wire and gauge should peg out). Also, if you use thread sealant, don't use Teflon tape. It'll mess with the grounding. Use a liquid sealer if you need to.

I’ll check again on the sound. Also I’ll work on the timing tomorrow. Choke is the first thing I checked, it’s good. Temp sensor is on top of manifold, driver side. Wires are good but it’s reading way lower than it should ( about 120). I’ll check on the sealant but don’t think it was teflon.

 

[bronco italiano]

Well, that’s great. I’m taking back to the mechanic on Monday. May get it running then sell. Hate to do it, but I don’t have the know how to work on it. Evidently no one in my area does either.

What area are you in?

 

[deltabronco]

What area are you in?

Raleigh NC

 

[bronco italiano]

NC!!!! Your in NASCAR country.
There is gonna be an old Ford person somewhere!!!
https://www.broncosofthecarolinas.com/

 

[deltabronco]

Yeah, that’s what I would’ve thought…

 

[Jaybr]

I feel ur pain. Just pulled a BP 306 with less than 50 miles with broken ring on #1 cylinder. in ur efforts to run down ur gremlins I didn’t see a compression test. Oh, did u know BP has stopped making the engine ? Just saying.

That’s not good to hear, I have two of them I haven’t started yet


Sent from my iPhone using Tapatalk

 

[bronco italiano]

I sur e hope this is something very simple.
BP hasn't been doing well lately with their build quality.
If you can't sort this out real soon, pull that motor and send it back.
No way BP ran it in and your having all these problems after new trans/t-case/all the effort you have put into this.

 

[Torkman66]

Same boat. I have the BP 302 Cruiser. Installed but a few months away from starting it. I did replace the valve covers to something that did not have the huge BP logo. When they were off I saw lots of evidence of engine oil in the top of the heads around rockers. That suggested to me that it was run before sending it. I'm thinking I should mock up the electrical to see how it runs. Hope it is ok!

 

[Jaybr]

Same boat. I have the BP 302 Cruiser. Installed but a few months away from starting it. I did replace the valve covers to something that did not have the huge BP logo. When they were off I saw lots of evidence of engine oil in the top of the heads around rockers. That suggested to me that it was run before sending it. I'm thinking I should mock up the electrical to see how it runs. Hope it is ok!

View attachment 919365
View attachment 919366

I’ve had mine since 2020 and they came with dyno sheets showing that they ran them. Do they not still do this?

Also, it looks like they still sell this motor they just call it a 302 since they switched to the new block.


Sent from my iPhone using Tapatalk

 

[deltabronco]

How loud is the clicking noise? Are you 100% positive it's coming from the transmission? Use a stethoscope type device to pinpoint the clicking noise. Wooden dowel works just as well. I'll bet that it's not the transmission, it could very well be an exhaust leak. Hoping not a lifter tick with a new motor.

On the motor side, get your vacuum gauge and timing light out and see if you can't get those numbers bumped up (advance timing should raise your vacuum). Test drive it and see if it improves at all.

Also, have you checked that your choke is opening and not stuck or hung up on something?? Wouldn't be the first I've seen that happen for sure.

Finally, where is your temp sensor mounted? Have you checked your gauge (ground out wire and gauge should peg out). Also, if you use thread sealant, don't use Teflon tape. It'll mess with the grounding. Use a liquid sealer if you need to.

Bumped idle up to 800 and I’m getting 13 inHG

 

[bronco italiano]

See how it drives at that setting.

 

[m_m70]

Bumped idle up to 800 and I’m getting 13 inHG

Is the gauge steady or bouncy??
Increase your timing. 14* is more than safe with that motor. See what that does to your vacuum.

 

[deltabronco]

See how it drives at that setting.

Send me your email and I’ll send a video

 

[m_m70]

I’ve had mine since 2020 and they came with dyno sheets showing that they ran them. Do they not still do this?

This was my understanding as well.

 

[bronco italiano]

Send me your email and I’ll send a video

donaldvieira@comcast.net

 

[deltabronco]

Is the gauge steady or bouncy??
Increase your timing. 14* is more than safe with that motor. See what that does to your vacuum.

So it was 13 and steady at 10 degrees 800 rpm.
Now it’s bouncing from 12-13 at 14 degrees at 600 rpm

 

[deltabronco]

Increased idle to 700 rpm and its holding steady at 14 inHG at 15 degrees

 

[bronco italiano]

No video came through on the email.
Adjust your carb for smoothest needle/highest vacuum and drop the rpm's if you can keep it smooth (to 650-700 at lowest).
What base timing did BP want with the cam? I would stay with that for now because of their warranty.

 

[deltabronco]

So I’m definitely thinking it’s the engine. It does run better but getting a ticking noise from the engine. Hoping it’s an exhaust leak

 

[m_m70]

What base timing did BP want with the cam? I would stay with that for now because of their warranty.

https://knowledgebase.blueprintengines.com/knowledge/kb-search-results?term=base+timing

10* to 16* on base from their site.