Best Relay

[V11_RM_RG]

An update on those Durakool DG82-2011-36-1012-DR.

I bought some of those Durakool Relay to try, and they just keep on blowing fuses . I insert it on the number 5 relay location (fuel pump/ coils/ injectors) and when I turn on the ignition, the fuel pump did not prime because somehow the ECU fuse has blown. 

If anyone got any clues as to why this happened will be much appericated!!

[gstallons]

Was this doing this prior to changing the relay ? What year and model ? Which position (from the front) fuse is this that blows ?

Edited January 26 by gstallons
more info

[V11_RM_RG]

Nothing like this has happend before at all, I only change the relay with Durakool as a preventative maintance.

2001 V11 Rosso Mandello. the very first fuse (5 amp) front the front (ECU fuse), which is labeled F1 on the wiring diagram.

Will do some resistance test on these Durakool relays and compare them with Siemens and Panasonic relays that is currently on the bike.

Edited January 26 by V11_RM_RG

[gstallons]

Reinstall your old relay and see if the fuse blows when you turn on the ignition switch .

[V11_RM_RG]

Yes I did reinstall all the old relays, replaced the blown fuses and bike runs normal like how it used to be. Must be the new relay but just couldn't figure out the reason behind it.

[gstallons]

a new part doesn't mean a good part . 

[Pressureangle]

15 minutes ago, V11_RM_RG said:

Yes I did reinstall all the old relays, replaced the blown fuses and bike runs normal like how it used to be. Must be the new relay but just couldn't figure out the reason behind it.

Do  you have only one relay to test? 
SPDT is a standard, so the relay should be correct fitment
A relay cannot affect current if it's working correctly- I'll suggest the relay is defective and shorting to ground internally. 

[V11_RM_RG]

After the resistance test on 85 & 86, 1 of 3 Durakool I used was defective which I believe was on #5 fuel pump location.

I also tested the 2 I did not use and 1 is also defective so that make it 2 out of 5 are defective.

That sums up the quality of these Durakool relays and I simply would not trust the 3 that pass the "resistance test".

[docc]

1 hour ago, V11_RM_RG said:

After the resistance test on 85 & 86, 1 of 3 Durakool I used was defective which I believe was on #5 fuel pump location.

I also tested the 2 I did not use and 1 is also defective so that make it 2 out of 5 are defective.

That sums up the quality of these Durakool relays and I simply would not trust the 3 that pass the "resistance test".

Your Durakool relays are the 5-pin, "R" version, with the resistor, integral, @V11_RM_RG?

[V11_RM_RG]

21 minutes ago, docc said:

Your Durakool relays are the 5-pin, "R" version, with the resistor, integral, @V11_RM_RG?

Yes that's correct, 3 measured 93.5 ohm and the 2 defectives measured 0.1 and 0.01 ohm. No wonder they blow fuses. 

Edited January 27 by V11_RM_RG

[igor]

On 1/27/2017 at 12:45 AM, docc said:

*Best* relay for the V11 has been the High-Current OMRON G8HE-1C7T-R-DC12 , but out of production and hard to source. [rated 20a N.C./ 35a N.O.]

>EDIT/ July 2021: Members have reported success sourcing the OMRON from various ebay sellers (see page 12 of this thread).

> EDIT/ October 2021: a promising alternative has been discovered by @p6x:                                      CIT A11CSQ12VDC1.5R        Data sheet     [rated 20 / 30 ]

> EDIT/ March 2023: another High Current contender from @Speedfrog:

          Picker Components PC782-1C-12S-R-X      Data Sheet   [rated 25 / 30 ]

 

[ Form A (4-pin) relays can be used in positions #2-#5.

                    Only position #1, front/ Start Relay, requires the Form C (5-pin). ]

 

The prevailing wisdom says: use The Very Best 5-Pin relays in all five positions,

.  .  .  carry extras for your riding buddies that didn't get the memo .  .  . 

 

 

 

Hi ,

Are all the relays on a V11 le Mans 2001 the same ?

can you confirm that this model is a good one : Picker Components PC782-1C-12S-R-X 

Thanks a lot for your help

 

[gstallons]

igor , this relay APPEARS to have only 4 terminals . You want to use a relay w/5 terminals because one of the relays (starter) powers the headlight relay when the starter is not activated .  It is best to have all relays the same in case you are caught and need to swap relays around.  I can't remember if the OMRON relay G8HE-1C7t-A-DC12 is still available or not ?  Mine came from Digi-Key . Feb  2017.  They are still in the bag they came in .

Omron is the relay of choice here .

Edited 10 hours ago by gstallons
more info

[Pressureangle]

1 hour ago, igor said:

Hi ,

Are all the relays on a V11 le Mans 2001 the same ?

can you confirm that this model is a good one : Picker Components PC782-1C-12S-R-X 

Thanks a lot for your help

 

I don't know the 'used car parts' environment in Belgium, but here in the US these Omron relays are under the hood of every Jeep in the junkyard, can be had by the dozens for dollars. 

[gstallons]

According to my Waytek catalog this Picker relay has 5 pins w/30a n.o. (to feed the headlights)  contact rating and 25a n.c.  (to operate the starting motor) rating. Three terminals are 1/4 blades and two terminals are 3/16 wide. and should work .  Temp operating range is -40c to 125c . Sounds good to me. 

Edited 10 hours ago by gstallons

[docc]

AFAIK, OMRON discontinued production of the G8HE micro relay we used. Sure, you may find them used or NOS.

Currently, the Picker Components PC782-1C-12S-R-X is the best we have found with the highest NC contact rating for the #1/start position ( @igor, the first/front relay is the only position requiring the 5-pin/ Form 1C, yet best practice is to use the same 5-pin/ Form 1C in all positions so they can be swapped around as @gstallons noted).

This CIT is a close second and certainly up to our needs:

                                                          A11CSQ12VDC1.5R