hurth

User instructions, fluid level and type, spare parts.

Two quick questions if i may? I've been trying to locate a definitive answer to the question of what is the recommended fluid capacity for the Hurth HBW-50 transmission, which is behind my Universal M-25 on an E32. I have seen .29 quarts, .44 quarts, and 1.3 pints. Does anyone know for sure...

I have my transmission apart. Upon disassembly there was no seal or sealant between the two halves of the case. it goes against my best judgement to reassemble with out any sealant, but it had none to start, I am leaning toward assembling it the way I found it. Does anyone have experience with...

My transmission has developed a loud CLUNK sound when it is put into forward. There is a softer clunk when going into reverse. As I recall the sound I am hearing when putting in reverse is the sound I used to hear when putting it into forward. Any thoughts? The Hurth Model is HSW50 in my...

Last night I checked the oil (ATF) level in the Hurth transmission on our Universal M25XP. You would think that after all these years I would "get used" to barked knuckles... Not so. Loosen the two hose clamps that hold the heat exchanger. Then, remove the two bolts that hold the H.E. bracket to...

Does anyone know the reduction ratio for M-40/5432 engine /w Hurth HBW-100 transmission. I ordered a new three bladed prop awhile back, and I think I'm slightly overpitched as I can't get tach beyond 2150-2200 rpm. Below is an exchange I had with the prop folks. I guess most succinctly, is the...

Hi, I have done a search, but only found one response on the subject. My boat mechanic recommended adding synthetic transmission fluid rather than the usual Dexron III which replaced the Type A fluid that the manual recommends. The synthetic fluid container said it was compatible with...

I have a 1987 E34 with the Universal M25XP engine. These used gearboxes from my boat might interest someone mechanically adept that could overhaul them. The ratio is 2.05:1 History on the gearboxes The newer one has less than 150 hours on it. It was purchased new from MMI in Seattle. It...

My Hurth HBW50 slips in forward gear, as I have described on other threads in the past. I am taking a long time getting it done, but planned to pull the trans & replace with the next bigger ZF10. I have the boat mostly apart to pull the trans, but a dockside friend with a powerboat (he crews on...

Hello All, I have the Universal 5432 with what I am assuming is a Hurth transmission in my E38. I don't have a manual for the transmission which leaves me with some questions: 1) How high should the oil level be on the dipstick? There is a line on the stick but it is at the very bottom end...

I would like to put new rings etc. in my engine. I have it out to repair or replace the tranny which gave up on the forward gear.. looks like my winter is going to be fun..fun..fun. Would appreciate a shop manual for these.

I put my engine on ebay if anyone is interested. Running Takeout, removed from 1982 - Ericson E36 (8-14-2006). Universal Marine Diesel 5424 (24hp) with Hurth transmission (2:1). Complete with instrument panel (not shown) Fuel, Oil Pressure, Alternator gauges. This engine runs fine I decided...

Our Hurth tranny on a 3 cyl. universal diesel lost the forward gear.Anyone else experience this problem? Need advice as to wheather to replace or repair. Tranny worked great for many years and then without any warning I lost the forward gear(thank goodness we had just got through Dodds Narrows...

Help again folks. After accomplishing 36 of the 38 high priority tasks for this wonderful 1986 E32-3 we bought in Dec 05 we are sailing! It is great and we are looking forward to a fantastic summer here in Puget Sound and parts North. But I am a worry wart. The Hurth Transmission behind the...

LAST WEEKEND WE ATTEMPTED TO GO SAILING. I MOTORED ABOUT TWO HRS WITH A LOW BUT HIGH PITCH SQUEAL WHICH I COULD NOT ISOLATE. RATHER THEN RETURN AND BE WISE, WE CONTINUED AND FROZE UP THE TRANS. WE WAITED TILL THE NEXT DAY. CHKD THE FLUID (NONE). ADDED NEW FLUID, ROTATED THE SHAFT, CROSSED...

A couple of weeks ago, we went out for a nice evening sail after work. We got out into Commencement Bay, put up the sails and killed the engine. It was a really nice evening - about 60 degrees and 10 knots of wind, no chop. I thought it was perfect until I started hearing this...