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351 main seals replacement

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=51847
Printed Date: January-09-2025 at 11:21am


Topic: 351 main seals replacement
Posted By: Ginovv
Subject: 351 main seals replacement
Date Posted: January-07-2025 at 2:01pm
Good evening all

Our oil pan was leaking and I had to take the engine out of our BFN 1994.
This was new to me and everything went pretty well. The oil pan came out easily and I'm sending it to a welder.
Decided to replace the damper plate and both of the seals while I'm at it. 

the question is that I can't seem to find the correct seal. On summit they dont have any reverse rotation rear seals, I emailed them and they said it doesn't matter left or right. Watching several youtube videos and reading on fora tells me there is indeed a difference. 
I also know that I have a 1-piece seal (1983-2001) and not a 2 piece seal. I read this somewhere on this forum. 

I have found 2 items on ebay and I want to know if these are the right ones (ones on skidim are overpriced and they charge a ridiculous amount of shipping)

Rear main seal 351 RR: http:// www.ebay.com/itm/253586318294?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=IahST1XyTXC&sssrc=2047675&ssuid=1q6i6drdtzy&widget_ver=artemis&media=COPY" rel="nofollow -  https://www.ebay.com/itm/253586318294?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=IahST1XyTXC&sssrc=2047675&ssuid=1q6i6drdtzy&widget_ver=artemis&media=COPY

edit: seems the one i posted earlier wasn't for reverse rotation. this one from Summit is RR.
Front seal alone:Fel pro 17795:  http://https//www.summitracing.com/parts/fel-17795" rel="nofollow - https://www.summitracing.com/parts/fel-17795
Fel pro 17760 :  http://https://www.ebay.com/itm/404896210221?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=J8Hjbd0aR8i&sssrc=2047675&ssuid=1q6i6drdtzy&widget_ver=artemis&media=COPY" rel="nofollow - https://www.ebay.com/itm/404896210221?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=J8Hjbd0aR8i&sssrc=2047675&ssuid=1q6i6drdtzy&widget_ver=artemis&media=COPY

Could you guys be so kind to confirm I have the right one? Smile

I could also need some advice in replacing them, so if you guys have any tips, let me know!

Thanks in advance
Keeping this old boat runningSleepy

Gino van Vroonhoven
Belgium, Europe



Replies:
Posted By: KENO
Date Posted: January-07-2025 at 7:30pm
Your links didn't work, but here are a couple of links to EBAY, maybe the same ones you had 

http://www.ebay.com/itm/253586318294" rel="nofollow - link  to rear main seal for Reverse rotation 351w   CS 4592RV

http://www.ebay.com/itm/325684916520" rel="nofollow - link  to Reverse rotation front seal  FP 17795

Both of those seals will work for you

And here's a link to an old thread with some seal discussion and an alternate part number for the front seal SKF CR18562

http://www.correctcraftfan.com/forum/forum_posts.asp?TID=38164&title=351w-rr-seals" rel="nofollow - link

PS......that 17760 seal that you mentioned fits a Chevy so I think I'd avoid that one. Wink


Posted By: Fl Inboards
Date Posted: January-08-2025 at 8:38am
https://skidim.com/seal-rear-main-351-rh-1pc/

-------------
Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.




1993 Shamrock "fat" 20. 2008 Nautique 196 5.0


Posted By: KENO
Date Posted: January-08-2025 at 6:01pm
Originally posted by Fl Inboards Fl Inboards wrote:

https://skidim.com/seal-rear-main-351-rh-1pc/

I seem to think that Gino is probably not exactly interested in your Skidim link and that's why he posted his questions in the first place

Originally posted by Ginovv Ginovv wrote:

 

I have found 2 items on ebay and I want to know if these are the right ones (ones on skidim are overpriced and they charge a ridiculous amount of shipping)



Posted By: Ginovv
Date Posted: January-09-2025 at 4:31am
Originally posted by KENO KENO wrote:

Your links didn't work, but here are a couple of links to EBAY, maybe the same ones you had 

http://www.ebay.com/itm/253586318294" rel="nofollow - link  to rear main seal for Reverse rotation 351w   CS 4592RV

http://www.ebay.com/itm/325684916520" rel="nofollow - link  to Reverse rotation front seal  FP 17795

Both of those seals will work for you

And here's a link to an old thread with some seal discussion and an alternate part number for the front seal SKF CR18562

http://www.correctcraftfan.com/forum/forum_posts.asp?TID=38164&title=351w-rr-seals" rel="nofollow - link

PS......that 17760 seal that you mentioned fits a Chevy so I think I'd avoid that one. Wink

Thank you so much Keno, once again!

Indeed they were the same as the once I linked.
And that 17760 seal said it would also fit 351w...  so thank you for clearing that out. 

Thanks again!


Posted By: Ginovv
Date Posted: January-09-2025 at 5:22am
Originally posted by Fl Inboards Fl Inboards wrote:

https://skidim.com/seal-rear-main-351-rh-1pc/
Thanks for the link, but like i said they ask outrageous prices for shipping. I guess they dont like international customers.
Normally I always shop at Nautiqueparts, which are also very helpfull. Unfortunately they dont stock these seals. 

I went to see how much it would cost me at Skidim

Seal: 61.40 dollar
shipping: 67.98 dollar!!

total of 129.38 dollar

Where as now, I pay 53.50 euro with shipping. (seal 27,.. + 17 shipping + 9 dollar vat)
So it's def worth looking for part numbers etc Smile



Posted By: Ginovv
Date Posted: January-09-2025 at 5:57am
Just one more question

I also removed the oil sump filter from the engine. A friend of mine told me to backwash it to get rid of any slush.
Although I didn't have any slush, I did remove it. 
There is a small diamond shaped gasket, does anyone have number or link for that? 
Or are these just universal?

thanks


Posted By: Fl Inboards
Date Posted: January-09-2025 at 8:34am
Hi Ginovv,

We have no control over shipping cost as well as we offer only oem or first quality components where Amazon and E-bay the quality is usually cut rate and low service life.
Our staff at Nautique parts as well as Discount inboard marine are very knowledgeable and strive to support our customers at the highest level possible. Amazon and E-bay can not do that.
Our overseas support and ability is second to none. you have an issue with our parts you can immediately get answers and usually a replacement part will be sent or refund or store credit.
Again we are sorry about the cost for such a small item as a seal, we have no control over that aspect of doing business.
Thank you.
Jody Seal / Senior tech, support/ NP/DIM




-------------
Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.




1993 Shamrock "fat" 20. 2008 Nautique 196 5.0


Posted By: Ginovv
Date Posted: January-09-2025 at 10:00am
Originally posted by Fl Inboards Fl Inboards wrote:

Hi Ginovv,

We have no control over shipping cost as well as we offer only oem or first quality components where Amazon and E-bay the quality is usually cut rate and low service life.
Our staff at Nautique parts as well as Discount inboard marine are very knowledgeable and strive to support our customers at the highest level possible. Amazon and E-bay can not do that.
Our overseas support and ability is second to none. you have an issue with our parts you can immediately get answers and usually a replacement part will be sent or refund or store credit.
Again we are sorry about the cost for such a small item as a seal, we have no control over that aspect of doing business.
Thank you.
Jody Seal / Senior tech, support/ NP/DIM



Hi Jody

nothing personal, dont get me wrong.
but I do notice a difference in shipping prices at NP. So that's why I order there and not at Skidim.
Ofcourse I am aware of the lack of service/support provided by ebay. 
If NP had it in stock, I would most def ordered it there. Already ordered several times there, always with acceptable shipping rates. 
Maybe next time!




Posted By: Fl Inboards
Date Posted: January-09-2025 at 10:06am
The gasket you are requesting info normally comes in gasket kits for rebuild.
Being where you are might be a stretch to locate as a singular gasket. i think if it was me i would make a gasket from locally sourced material. also it is a dry application gasket.
Cheers..
 


-------------
Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.




1993 Shamrock "fat" 20. 2008 Nautique 196 5.0


Posted By: Fl Inboards
Date Posted: January-09-2025 at 10:11am
Just so you realize, Nautique parts and discount inboard marine now are operating under the same roof, parts come out of the same warehouse.
i can look into why DIM shipping prices may be different then NP shipping prices. it just may be a glitch in the system.
Thank you and for your concerns as well as feedback are greatly appreciated.
Jody


-------------
Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.




1993 Shamrock "fat" 20. 2008 Nautique 196 5.0



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