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Title: Sucking Honking noise
Post by: Darrel on May 19, 2008, 04:05:40 PM

I have a 3rd generation RX7. I noticed oild dripping from the turbo/intercooler pipe. I stipped the pipes down, cleaned it and reclamped it tight. Now when I rev the car, as the revs decrease I the one HKS airfilter makes a sucking honking noise. I am new to RX7\'s and don\'t know why this is happening. There is no engine performance loss and it drives perfectly. it\'s more of any anoying sound that anything. Having searched the internet I have found some conflicting stories of bad shutter valves. Can anyone advise?

Darrel

Title: Sucking Honking noise
Post by: FD3SNuttah on May 19, 2008, 04:11:43 PM

theres a pipe coming from the airpump. It Moos when you dont have the little hks filter attached to it. you will notice it will do it about 3k ish when the airpump kicks back on.

Title: Sucking honking noise
Post by: Darrel on May 19, 2008, 04:24:23 PM

I take it this isn\'t a problem then?

Title: Sucking Honking noise
Post by: Darrel on May 19, 2008, 04:33:14 PM

I have checked the HKS buble filter and it is attached to the air pump. All the air pump pipes look tight. Do you think the noise isn\'t a problems?

Title: Sucking Honking noise
Post by: Ricco_04 on May 19, 2008, 10:55:06 PM

Hi Darrel,

The mooing noise is just the airpump - this can be reduced by using a restrictor in the airpump to filter pipe.

Will catch up with you & john mid week :wave

Title: Sucking honking noise
Post by: Darrel on May 20, 2008, 11:09:28 AM

I popped over to Tims last night and he confirmed what you said. I have a HKS bubble on a pipe going into the air pump. When we took it apart there was nothing in it. Tim diosconnected the airpump and when I rev\'d it the noise disappeared. I will get my brother to make me a restrictor. I may not be able to make the Wednesday night Harvester meet as it\'s my birthday but hopefully we catch up soon.

Darrel

Title: Sucking Honking noise
Post by: Ricco_04 on May 20, 2008, 11:00:05 PM

Ah no worries - but hey, thanks for reminding me about tomorrows meet else I would have forgotton again! :spank

Title: Sucking Honking noise
Post by: jurgen on December 13, 2008, 05:35:57 PM

so what was the issue mate..

he have an rx7 thats sucking/chuffing on the first turbo at idle..

we replaced the air pump as we thought it might be that and no joy still getting a dark vader noise..

but its coming from the turbo .

could it be the wastegate stuck ??

Title: Sucking Honking noise
Post by: philiwily on December 13, 2008, 07:45:54 PM

If you rev it to 3000 rpm does the noise stop at the same time as the airpump disengages?

Title: Sucking Honking noise
Post by: jurgen on December 13, 2008, 08:51:03 PM

Quote from: philiwily;565043If you rev it to 3000 rpm does the noise stop at the same time as the airpump disengages?

will check and report can you give me the answer to ..

yes it does at 3000rpm

and no it does not..

if you can mate cheers.:Laugh

Mazda Rotary Club

General => General Technical => Topic started by: Darrel on May 19, 2008, 04:05:40 PM