This is the new Honeywell Oil Pressure sender. This is now supplied with all new Rotax 912 engines. The problem with the older type was they would show high oil pressure when it was in fact normal. Rotax had a new manufacture but the standard was no better. Rotax replaced the manufacture with Honeywell and the problem was gone. Use the best and the problem is no longer there.
Hi Jeff, I have a 912 with over a 1000 hours on it and I have had no problems either. However some of my newer one did have problems, the Rotax agent said that he could supply me with a new sender but it would probably fail any way. Then Rotax brought out the newer engines with the sender in the photograph and not more problems.
Thanks for the input-- newer and more expensive is not always better (see Rotax fuel pump failures (old Pierburg is best)).
But ... that being said, I would switch to the Honeywell now that my engine seems to be one of the ones (or the newer VDO senders I've been using) that fails the sender except that I'm not sure it's a straight swap- I thought there was something about one measuring resistance and the other measuring current, so that the gauge setup needs to be different. For owners of analog gauges (steam gauges) I believe this means the gauge needs to be changes as well as the sender to one that reads the Honeywell output. For the Enigma (EFIS/ "Gauge"), I'm not sure what the procedure is ... (adjust the settings in the Enigma, or add an interface between the Honeywell and the Enigma (I think unfortunately it's the latter).... Hence, I've been a bit resistant to the change-- hoping one of the VDO senders will last, but it appears that may now be wishful thinking for me. Thoughts?
(This topic is a split from THIS THREAD see for initial discussion.)
Comments
This is the new Honeywell Oil Pressure sender. This is now supplied with all new Rotax 912 engines. The problem with the older type was they would show high oil pressure when it was in fact normal. Rotax had a new manufacture but the standard was no better. Rotax replaced the manufacture with Honeywell and the problem was gone. Use the best and the problem is no longer there.
Hi Jeff, I have a 912 with over a 1000 hours on it and I have had no problems either. However some of my newer one did have problems, the Rotax agent said that he could supply me with a new sender but it would probably fail any way. Then Rotax brought out the newer engines with the sender in the photograph and not more problems.
Thanks for the input-- newer and more expensive is not always better (see Rotax fuel pump failures (old Pierburg is best)).
But ... that being said, I would switch to the Honeywell now that my engine seems to be one of the ones (or the newer VDO senders I've been using) that fails the sender except that I'm not sure it's a straight swap- I thought there was something about one measuring resistance and the other measuring current, so that the gauge setup needs to be different. For owners of analog gauges (steam gauges) I believe this means the gauge needs to be changes as well as the sender to one that reads the Honeywell output. For the Enigma (EFIS/ "Gauge"), I'm not sure what the procedure is ... (adjust the settings in the Enigma, or add an interface between the Honeywell and the Enigma (I think unfortunately it's the latter).... Hence, I've been a bit resistant to the change-- hoping one of the VDO senders will last, but it appears that may now be wishful thinking for me. Thoughts?
(This topic is a split from THIS THREAD see for initial discussion.)
From what I can tell mine is original. No problems noted