Replacement engine 1989 SN 351
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=48102
Printed Date: May-02-2024 at 1:06am
Topic: Replacement engine 1989 SN 351
Posted By: ozarkcountry
Subject: Replacement engine 1989 SN 351
Date Posted: September-30-2019 at 6:07pm
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I'm brand new here but need advice. First time out this year with 1989 SN Ford 351: maybe a winterizing problem on our part that probably destroyed the engine. Started ok, ran about a mile before over-heating. Back at dock discovered 2 plugs out of engine, oil filter had blown off, oil all over bilge. Replaced block plugs and filter and oil and boat ran enough to get it on the trailer but engine knocked, temp still high. Without even seeing it, Marina says the engine is shot; say replacement engine will be hard to find and expect cost to be $6000 to $8000. Comments on cost estimate and availability of rebuilt or re-manufactured engine. I'm zero on engines so tell me also about long block and short block and which I would need. Prior to this problem the boat started and ran fine except the engine has always ran a bit hot. We bought the boat new in 1989 and my wife loves the boat. ------------- Jerry |
Replies:
Posted By: MrMcD
Date Posted: September-30-2019 at 6:36pm
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With your freeze plugs pushed out, it probably froze at some point. With the oil filter blown off, that one is odd, I have seen it but usually in an engine that is started in very cold temps, below 20* and maybe the engine was revved high before the oil had any chance to warm up. The engine will need to come out to determine its current value. Block may be fine or may be cracked. It will need to be inspected by a machine shop. If it is shot you have the choice to rebuild an engine or find a good running used engine take out. Your engine is probably a reverse rotation in a 1989 Nautique so keep that in mind when searching. If someone has a 351W reverse rotation in good shape, maybe 500 hours it might be the cheapest replacement choice. The engines are known to last 2,000 or more hours with good maintenance. Rebuilt engines are available from a few sources and there have been recent threads on this forum discussing those options if you do some searching. ------------- |
Posted By: TRBenj
Date Posted: September-30-2019 at 6:45pm
*probably not |
MrMcD wrote:Posted By: KENO
Date Posted: September-30-2019 at 7:05pm
Like Tim said ( in a lot fewer words), being an 89 it's most likely a reverse, reverse rotation engine otherwise known as standard LH automotive rotation hooked to a PCM 1.23 to 1 transmission.  89 was the first year for that setup Look at your engine tag or post a picture here and also a picture of the transmission if you're unsure It's really pretty easy to find a remanufactured long block if that ends up being what you want or need. Around 2000 bucks for a good quality remanned long block, labor and labor charge provided by you or someone else |
Posted By: Riley
Date Posted: September-30-2019 at 7:22pm
| We have a complete 1989 engine out of a Martinique. PM me if you'd like to hear more... |
Posted By: MrMcD
Date Posted: September-30-2019 at 8:12pm
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Rotation determining factor then, is it 1.23:1 or a 1:1 transmission. I did not realize the 1.23:1 came out in 89. 1.23:1 = Standard Rotatation engine 1:1 = REVERSE ROTATION ENGINE ------------- |