relief valve

Germanyjon · #1 (**permalink**) 06-26-2008, 12:19 PM

does anyone have a source for a SPICA pressure relief valve 1974?

**Roadtrip** · #2 (**permalink**) 06-26-2008, 03:42 PM

Look on ebay for a front fuel filter assembly for a 69-74 or a 79 (?) - 81 assembly with the PRV.

What makes you think yours is bad??

Germanyjon · #3 (**permalink**) 06-27-2008, 06:30 AM

My mechanic thinks it may be bad. After reinstalling the SPICA, there is not enough fuel pressure.

**Richard2** · #4 (**permalink**) 06-27-2008, 09:07 AM

Check with Wes Ingram wing@nwlink.com. I'm not sure If he's back from convention yet.
Are you sure it's not the fuel pump?

Germanyjon · #5 (**permalink**) 06-27-2008, 09:40 AM

don't know if it's the pump. my mechanic thinks it's the PRV

**Richard2** · #6 (**permalink**) 06-27-2008, 01:14 PM

I'm going to Anacortes this afternoon to pick up my V6 heads from Wes. I'll see if he has one.

**Roadtrip** · #7 (**permalink**) 06-27-2008, 01:28 PM

Thinks it's a bad PRV? Did he try bypassing the PRV to see if that's the problem. Takes about 10 minutes to do.

**Richard2** · #8 (**permalink**) 06-27-2008, 08:13 PM

Wes doesn't have any SPICA relief valves. He says they get corroded and dirty. He says most of the newer fuel pumps have a built in relief valve so the one in the SPICA pump isn't needed. Have your mechanic make it redundant. He's using the fuel pumps from Centerline that are made in Spain. He thinks they have a relief valve, but check with centerline.

**Roadtrip** · #9 (**permalink**) 06-28-2008, 04:24 AM

Quote:

Originally Posted by Richard2

Wes doesn't have any SPICA relief valves. He says they get corroded and dirty. He says most of the newer fuel pumps have a built in relief valve so the one in the SPICA pump isn't needed. Have your mechanic make it redundant. He's using the fuel pumps from Centerline that are made in Spain. He thinks they have a relief valve, but check with centerline.

Germanyjon · #10 (**permalink**) 06-28-2008, 07:17 AM

Thanks Richard and John.

Rosenmöller · #11 (**permalink**) 06-30-2008, 12:52 PM

Hello

I had that problem a couple of years ago.
the spring inside the valve was broken.
I did replace it with a Bosch valve Number: 1417413000

Or just look at the list.

Greetings from Germany

Bernhard

PS: After installing the new one I did check the correct function of the PRV according to the procedure in John's
SPICA Fuel Supply Diagnostic Guide

**Roadtrip** · #12 (**permalink**) 06-30-2008, 02:24 PM

Thanks Bernhard. I didn't think they were available anymore.

Rosenmöller · #13 (**permalink**) 07-01-2008, 05:40 AM

Hello

I knew that I wrote about this before.
Here we go:

Quote:

Originally Posted by Rosenmöller

I did take the whole idle air thing apart. Meaning I've cleaned all the intake bores by taking them out of the car aswell as the idle port itself. Then I installed everything back in with new tubes as well. But no change.
My Spica factory manual says in the trouble shooting section, if idle is too low that this could be caused by a to rich mixture, this is why I leaned the mixture out in the first place. And actually I think my mixture is properly set up now. I will be able to check with a gasanalyser on Tuesday.
On tuesday I will also check wether my reffmeter ( ? ) is showing the correct reffs.
@ Jim
The pressure relief valve I did use is a Bosch valve ranging from 1.3 bar to 1.8 bar. I ve attached the two sheets for you. The shown and corect valve number 1417413025 is not longer produced but I did use valve number 141741300 which you can adjust by putting shims between the two srews you see in Picture 12.
Greetings from Germany
Bernhard

Germanyjon · #14 (**permalink**) 07-01-2008, 07:16 AM

Thanks Bernhard

Can you send me the two sheets and Fig 12?

Where are you in Germany? I lived in your country for 10 years.

Germanyjon · #15 (**permalink**) 07-01-2008, 08:10 AM

never mind Bernhard, I see it attached. what is your source for the part?