| Author | Message | ||
     Richard Greene Experienced User Username: benzjag Post Number: 154 Registered: 12-2012 |
I'm still trying to find the blower motors fuse as indicated in the attached PDF from the factory manual. I do not see the fuse on my 78 & 79 Shadow II. Could you guys check your Shadow II to see if you can locate it? If so, could you send a pic of it? http://au.rrforums.net/forum/messages/30/Fuel_Filler_FuseboxFig-15081.pdf Thanks in advance! Richard | ||
| Robert J. Sprauer Frequent User Username: wraithman Post Number: 479 Registered: 11-2017 |
There is a small plastic(bakelite?) box with a thumbscrew to hold the cover down located precisely as indicated in the illustration. Under the cover are 2 glass fuses | ||
| Richard Greene Experienced User Username: benzjag Post Number: 155 Registered: 12-2012 |
Robert, Could you shoot a pic of yours? I just went out to the shop and just do not see the fuse cover! Richard | ||
| Richard Greene Experienced User Username: benzjag Post Number: 157 Registered: 12-2012 |
This is what I have (instead of the fuses under the plastic cover) on my 3 USA Shadows II (78,78, & 79). I'm wondering if the US delivered cars are different? Any comments on the substitution found on my cars appreciated. Thanks! Richard   | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2891 Registered: 06-2009 |
Richard, I have not had time yet to see if there is any difference in this regard between SRH33576 and LRK37110, but, the following document may prove of help to you: https://drive.google.com/open?id=0B61gLtsXt4oqT01oVDU0YUxmYTA Brian | ||
| Robert J. Sprauer Frequent User Username: wraithman Post Number: 480 Registered: 11-2017 |
Looks like someone replaced the original with a circuit breaker. The terminals are a dead giveaway.  | ||
| Robert J. Sprauer Frequent User Username: wraithman Post Number: 481 Registered: 11-2017 |
another pic fan fuseblock  | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2892 Registered: 06-2009 |
Robert Sprauer's photos tell the tale, but since I just took a set, I'll post them as well.    This little exercise has cleared up a bit of a mystery with regard to SRH33576 as well. There has been a fuse holder with a modern ATC fuse that goes between the yellow wire and brown with white tracer wire ever since I bought the car. The OEM fuse holder block is no longer present at all. I often wondered how that came to be where it is, and now I know it was someone's replacement of that fuse holder. Brian | ||
| Richard Greene Experienced User Username: benzjag Post Number: 158 Registered: 12-2012 |
Thanks Robert & Brian! Mystery indeed solved. I sincerely appreciate your photos! What is odd is 3 former owners in various parts of the US replaced the fuse with the circuit breaker on my cars! One did not know the other one! Now on to finding out why my blower fans will suddenly stop working, but will instantly come back on if I turn the switch to off then back on! What do your guys think? Could the breaker be flipping off, then back on or perhaps the relay is on its way out? Richard | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2893 Registered: 06-2009 |
Richard, Check to see the rating on those circuit breakers (which can get wonky with age). According to the documentation these should be 20 Amp. I know that in SRH33676 a 20 Amp fast blow fuse would blow when, in my opinion, it should not have. I bumped up the fuse to, in this case, 30 Amp and monitored things carefully for a very long while. I have not suffered any overheating wire, etc. I can't recall if I tried 25 Amp or not, as it's been years since this was done. I think this is the one and only time I have ever changed out a fuse to one above the originally recommended rating, but I became really frustrated by the blowing of the 20 Amp fuse where no root cause could be determined. I didn't pull out the fuse that's actually in place in LRK37110, and it's definitely not the Bulgin original and the one that would be in the spare position is long gone, too. I have no idea if what's in there is 20 Amp or not. It would not surprise me if these other owners were experiencing the same sort of thing that I was and tired of dealing with blown fuses and decided to substitute a self-resetting circuit breaker. Brian | ||
| Richard Greene Experienced User Username: benzjag Post Number: 159 Registered: 12-2012 |
Thanks, Brian. As always, this is exactly what I needed. I think I will replace the breaker with a 30 Amp and go ahead & replace the relay since it's easy and inexpensive! Richard | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 2894 Registered: 06-2009 |
As a final note I did go out, remove that fuse holder cover (the easy part, getting that screw aligned to put the cover back, well . . .) and can confirm that the fuse present is a Buss AGC 25. LRK37110 was, before my custodianship, serviced exclusively by what is now Bentley High Point in NC. It is virtually certain that they are the ones that replaced the OEM Bulgin 20 Amp with this 25 Amp fuse. This makes me suspect that the original electrical engineering was being very conservative about the fuse and that the actual draw is slightly above 20 Amp in many circumstances. I do remember that I replaced the inline ATC fuse holder that had been there as things had gotten quite hot at the holder on what had to have been numerous occasions when it had the (20 Amp, I believe, but cannot be certain) fuse that was originally in it. The holder and wiring around it have been just fine with the 30 Amp. I may now have to try bumping that down to 25 Amp when I get SRH33576 back on the road and monitor what happens. Brian |
