Trailer - Thunking brakes and such
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=3771
Printed Date: January-16-2025 at 3:01pm
Topic: Trailer - Thunking brakes and such
Posted By: M3Fan
Subject: Trailer - Thunking brakes and such
Date Posted: June-03-2006 at 7:00pm
My 2000 Ramlin SA trailer has a "t*tan" brand coupler/actuator. The brakes appear to be working, however, when I accelerate from a stop I feel a "thunk" as the car pulls the actuator back out. Looks like there is a small shock absorber in the actuator- I'm wondering if this is the problem, or that the master cylinder is shot also? I don't feel the thunk while braking, just when pulling away.
Also- It looks like I have Posi-Lube spindles which I've never seen before- the zerk is on the spindle itself and not on a bearing buddy of any sort. Any thoughts or comments on this setup?
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Replies:
Posted By: AWhite70
Date Posted: June-06-2006 at 8:28am
I have the same trailer under my '02 Ski 196 and have experienced similar problems. When I bought the boat I noticed the "clunk" you are describing pulling away from stops. I also noticed that the brakes didn't seem to be helping much. I inspected the master cylinder and found it to be empty (not sure why). I filled it and bled the air out of the lines and the brakes work great, I was also surprised to see the "clunk" when leaving stops disappeared or was at least greatly reduced.
I think you're on the right track. Check your mater cylinder to make sure everything seems ok. Then you may want to replace the shock absorber.
As for the hubs...There are several names for hubs of this nature. The grease zerk serves a completely different purpose than that on a bearing buddy. On this style of hub the spindle is drilled and then has a connecting cross drill between the rear bearing and axle seal. It is a provision to repack the hubs without disassembling them. You pump grease into the back of the hub and it pushes all the old dirty grease through and out the front of the hub. I've had good luck with it. One piece of advice I would give is when pumping new grease into the hub jack up the wheel and spin the hub while pumping in the new grease. That will distribute the grease evenly across the bearings rather than loading it up in one point.
The grease on a true bearing buddy just pushes grease into the hub cavity and establishes ~3psi of pressure to keep water out of the hub when submerged. A bearing buddy does not provide fresh grease to the bearings like the above mentioned system.
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AWhite70
http://www.correctcraftfan.com/diaries/details.asp?ID=562&sort=revyear&pagenum=5&yrstart=1976&yrend=1980" rel="nofollow - '79 Ski Nautique
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