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Old 25 April 2017, 15:14   #1
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Tohatsu ram seals

Hi all, I am looking for some help with a Tohatsu 80hp My two lower pistons on the power trim have seals which are shot due to issues on the piston shaft. The pistons are available BUT the seals are discontinued and my mechanic is having trouble finding them. Does anyone have any ideas as to a supplier where these might be available?

Thanks
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Old 25 April 2017, 16:26   #2
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Country: UK - Scotland
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Boat name: Sula
Make: Ribcraft 4.8m
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Can you confirm the model and year?

Assuming it's pre-2002 80hp 2-stroke your best bet might be to try some of the outboard spares places in the US where Tohatsu is badged as Nissan.

If you have the old seals - any indication if another business that specialises in hydraulics can source? Pictures and sizes will be useful.

2002 And Earlier NS80A Nissan Outboard POWER TRIM & TILT Diagram and Parts
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Old 25 April 2017, 18:11   #3
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Quote:
Originally Posted by Chief Wiggam View Post
Hi all, I am looking for some help with a Tohatsu 80hp My two lower pistons on the power trim have seals which are shot due to issues on the piston shaft. The pistons are available BUT the seals are discontinued and my mechanic is having trouble finding them. Does anyone have any ideas as to a supplier where these might be available?



Thanks


I had the same issue, tried http://www.rib-shop.com no luck!

I have 96 m140a2 tohatsu

In the end ordered new seals/complete end caps for trim cylinders and piston seals too from the USA. From boats.net.

http://www.boats.net
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Old 02 May 2017, 08:12   #4
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Thanks for the information - much appreciated - I will post on here when and if the problem is resolved!
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Old 02 May 2017, 13:34   #5
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I had knackered seals on my suzuki lower rams.

I unscrewed the caps and pulled out the o rings, matched like for like and replaced the caps. Has worked fine ever since.

Caps (complete with O rings) were £37 each from Suzuki, O rings cost me £2 in total
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Old 01 June 2017, 08:19   #6
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Quick update

Seals were no problem and sourced locally - the rams were initially thought to be a problem but with some careful work are still usable and so at the moment all is well. Unfortunately these are 'discontinued' in the UK so the only source appears to be Boatnet OR to be repaired with some precision stainless welding and lathe work - hopefully an issue for some time in the future. The immediate solution is not to trim right up and leave a few inches further down to avoid the worn area.

Thanks for all the advice and the discovery of Boatnet is excellent
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Old 02 October 2017, 07:14   #7
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Update number 2

The new seals lasted until the end of July and then failed due to the worn pistons. To sum up quite a long period I ordered new from Boatnet whose service was impeccable - unfortunately these did not fit as I was unaware that the unit was actually upgraded for the 90 to140 engines. However Boatnet accepted the returned parts for a 15% surcharge and the UK sourced parts were obtained so a good result in the end.

I would recommend Boatnet for parts that might not be available here - it was no more difficult than ordering from a UK supplier and the emails and communications superb at every stage.

Import VAT has been reclaimed and repaid by Border Force - just remember to keep all details and also keep the original parts packaging.
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