2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Pulsation Damper

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Old Dec 2, 2003 | 08:01 PM
  #1  
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Pulsation Damper

Re pulsation damper. As i can't find a replacement part in Australia, can someone detail what needs to done to use this talked about Banjo Bolt??
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Old Dec 2, 2003 | 08:17 PM
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This might be of assistance.
https://www.rx7club.com/showthread.p...ght=banjo+bolt
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Old Dec 2, 2003 | 08:27 PM
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Na. No help. Need to put the banjo bolt on, but don't know how. Basically, can anyone provide a step by step instruction list of how to do it.
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Old Dec 2, 2003 | 11:39 PM
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here is what I have seen....

The banjo bolt is on the rear end of the primary fuel rail--opposite side from the pulsation damper(pd). What you do is get an extra primary fuel rail, remove the bolt from the rear of it, remove your pd(need two wrenches--one to hold as a backup and one to turn it loose), and then install the banjo bolt in the pd's place. Simple, and as long as you can get the bolt, only should take a couple minutes. HOWEVER, there are different opinions as to whether or not this is a safe thing to do for the long term. I am looking at getting one now just as a short-term myself, since a new pd is around $130 and I can hopefully get the banjo bolt for like $5. But thats all there is to it
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Old Dec 3, 2003 | 02:29 AM
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As this is a Jap import, the PD is actually on the secondary rail, not the primary.

Heather, can't Mazda get a replacement PD for you?
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Old Dec 3, 2003 | 10:09 AM
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Originally posted by NZConvertible
As this is a Jap import, the PD is actually on the secondary rail, not the primary.
Yeah I forgot that.

That sure makes it easy to replace!
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Old Dec 3, 2003 | 10:15 AM
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so is it the same thread pitch as a-spec? if so you need a 12x1.25 you remove the pd and the bolt goes where the pd was. the reason this works so well is becouse the pd is a banjo bolt just a leaky banjo bolt...


ej
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Old Dec 3, 2003 | 10:19 AM
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im surprise noone has flmaed you for not using teh search over 50 results. go to http://rotaryresurrection.com/ and look under pulsation dampener also since your car is spec japan ( ahahah ) anyways is the othe rrail you will have to use
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Old Dec 3, 2003 | 03:38 PM
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Thanks for your help.Going to work on it tomorrow. As for the last message, i have actually done as search, and yes there are LOTS (over 50) threads on this topic, however I needed a "quote: "step by step instruction" which is NOT in any of the other threads. So a big THANK YOU to those who realised this and responded.
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Old Dec 3, 2003 | 08:23 PM
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dude i helped you didnt I? no need to get freasky sorry .. for crying out loud...
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Old Dec 3, 2003 | 08:30 PM
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so i understand that the banjo bolt is unsafe and that you should just replace the PD instead...but when should you replace it? i mean...i dont want to wait till my car catches on fire to know i should replace it, so when is a good time to replace it as a safety measure?
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Old Dec 3, 2003 | 08:38 PM
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From: Rohnert Park CA
Originally posted by dDuB
so i understand that the banjo bolt is unsafe and that you should just replace the PD instead...but when should you replace it? i mean...i dont want to wait till my car catches on fire to know i should replace it, so when is a good time to replace it as a safety measure?
Some people claim the Banjo bolt is safe. I personally don't but many people do.

It is recommended that the PD (no matter what series- 3-4-5-6) is replaced every 100K miles or 10 years which ever comes first.
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Old Dec 3, 2003 | 08:41 PM
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Sorry Peruvianrx7. That link actually did help, i've printed it off and added it to my little collection of "how to's on the PD".
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Old Dec 3, 2003 | 11:34 PM
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its cool man. you welcome keep it real but my recomendation is to buy a new pulsation damper from mazdaformance only 90 bucks!
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Old Jan 1, 2008 | 08:15 PM
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banjobolt

what does a banjo bolt look like an whats the cost;where do you find it.
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Old Jan 2, 2008 | 02:44 PM
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It's just a bolt. I'm sure you can do a search to find it. With it you aren't replacing the PD, you're just blocking it off and there's nothing left to smooth out the fuel system pulses. With a new PD lasting 100k miles, just do it the right way and replace the PD. OTOH a bolt is better than a leaky PD and an engine fire, so regardless of your decision please do something soon.
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Old Jan 2, 2008 | 06:53 PM
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Anyone considering the banjo bolt "mod" needs to read this topic:

https://www.rx7club.com/forum/showthread.php?t=395021
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