Blueprint Engine Potential Issue - Team Camaro Tech
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post #1 of 24 (permalink) Old Jul 24th, 15, 06:30 PM Thread Starter
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Blueprint Engine Potential Issue

Hey all,

I bought a Blueprint 383 crate motor with roller rockers back in Feb. 2015 and have put about 4k on it so far. It's a great motor, makes lots of power and has a great sound. I have two small issues with it so far:

1. The oil pressure runs high, 85 psi, and if I give it a little gas it'll go above 100.
2. The brand new radiator I installed is developing gunk around the fill neck, from what I believe to be a leaky head gasket. I'm pretty the engine is leaking exhaust gases in the coolant.

I sent an email last night and they had already emailed me back when I woke up. One of their techs called me this afternoon and was very helpful and is sending me a new oil pump to replace the possibly faulty one. I've heard they have great customer service and would like to keep you guys updated on what is going on and what the outcome is.

Here's a question. Should I replace the oil pump myself? Is that going to fix the high oil pressure? Also, should I have them send me to a shop? I don't mind replacing it, but I don't have a lift and from what I read, I'll have to lift the engine to get the oil pan out.

Any help is appreciated.
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post #2 of 24 (permalink) Old Jul 24th, 15, 07:10 PM
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Re: Blueprint Engine Potential Issue

Pump is easy to change. The trick is getting the oil pan of and back on again with it in the car.

#2 is getting it back together so it doesn't leak.

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post #3 of 24 (permalink) Old Jul 24th, 15, 07:14 PM Thread Starter
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Re: Blueprint Engine Potential Issue

Could the oil pump be faulty? Also, should I have them pay for it to be professionally done?
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post #4 of 24 (permalink) Old Jul 24th, 15, 07:25 PM
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Re: Blueprint Engine Potential Issue

Before you do all that, have you tried another gauge?

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post #5 of 24 (permalink) Old Jul 24th, 15, 07:26 PM
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Re: Blueprint Engine Potential Issue

Are your PSI's accurate ??? What gauge(s) are you using ?? I'm at 80 cold on a BBC. What oil are you using ?? I'm gonna say pump is NOT bad.

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post #6 of 24 (permalink) Old Jul 24th, 15, 07:26 PM Thread Starter
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Re: Blueprint Engine Potential Issue

I've tried a couple different ones and they all say the same thing. I forgot to mention that I have a brown-grey gunk around the fill neck of the brand new radiator, which from what I understand points to a blown head gasket, right?
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post #7 of 24 (permalink) Old Jul 24th, 15, 07:28 PM Thread Starter
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Re: Blueprint Engine Potential Issue

Quote:
Originally Posted by DT View Post
Are your PSI's accurate ??? What gauge(s) are you using ?? I'm at 80 cold on a BBC. What oil are you using ?? I'm gonna say pump is NOT bad.
I'm using a 10W40. The gauge is from classic instruments. I've also used a manual gauge. If it's not the pump, what could it be? Some sort of blockage?
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post #8 of 24 (permalink) Old Jul 24th, 15, 07:31 PM
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Re: Blueprint Engine Potential Issue

Oil filter bypass valve?

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post #9 of 24 (permalink) Old Jul 24th, 15, 07:31 PM
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Re: Blueprint Engine Potential Issue

I would pressure test the radiator and see if it holds.

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post #10 of 24 (permalink) Old Jul 24th, 15, 07:33 PM
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Re: Blueprint Engine Potential Issue

You may have a high volume/ high pressure oil pump. What is the PSI's at operating temps?? Cold temps will always be higher, just an FYI.

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post #11 of 24 (permalink) Old Jul 24th, 15, 07:41 PM
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Re: Blueprint Engine Potential Issue

Quote:
Originally Posted by blackmagik3 View Post
I'm using a 10W40. The gauge is from classic instruments. I've also used a manual gauge. If it's not the pump, what could it be? Some sort of blockage?
You mean mechanical gauge ?? So are you using an electrical gauge now?

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post #12 of 24 (permalink) Old Jul 24th, 15, 07:42 PM
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Re: Blueprint Engine Potential Issue

Bearing clearance has a major effect on oil pressure. I would review the build information and see if the clearances are on the tight side.
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post #13 of 24 (permalink) Old Jul 24th, 15, 07:43 PM Thread Starter
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Re: Blueprint Engine Potential Issue

Quote:
Originally Posted by DT View Post
You may have a high volume/ high pressure oil pump. What is the PSI's at operating temps?? Cold temps will always be higher, just an FYI.
When it's cold it's at 80-85 psi. When it's warm it's at 25 psi
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post #14 of 24 (permalink) Old Jul 24th, 15, 07:43 PM Thread Starter
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Re: Blueprint Engine Potential Issue

Quote:
Originally Posted by Vega$69 View Post
Oil filter bypass valve?
What about it?
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post #15 of 24 (permalink) Old Jul 24th, 15, 07:44 PM Thread Starter
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Re: Blueprint Engine Potential Issue

Quote:
Originally Posted by DT View Post
I would pressure test the radiator and see if it holds.
Will do. Thanks!
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