GT 40 Which Distributor Gear?
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=41971
Printed Date: November-22-2024 at 10:20am
Topic: GT 40 Which Distributor Gear?
Posted By: JayG80
Subject: GT 40 Which Distributor Gear?
Date Posted: September-22-2017 at 7:02pm
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I want to replace the distributor on 2002 Ski Nautique GT40. It is corroded inside and the PIP is not staying fixed in place. I tried gluing the pip in place and my engine missing got worse so I removed the glue. The current Motorcraft Distributor has a casting mark E9TE-12131-KA. Does this distributor have a cast or steel gear? EDIT 9/28/17 , After pulling out the distributor I see a decal with a different serial number. E9TE-12127-CA is marked on the sticker. The removed dizzy is definitely cast iron Edit" A car forum said that flat tappet motors use cast iron gears. The GT 40 is flat tappet engine. The car forum said roller cam engines get the steel gear dizzys". Any tips on replacing the distributor? NAPA can order a reman one. Thanks Jay ------------- 2007 Ski 2002 Ski |
Replies:
Posted By: KENO
Date Posted: September-22-2017 at 9:02pm
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Here's a picture, cast iron on the left, steel on the right Cast iron is rough looking, steel smooth and machined looking You can compare your 2 gears and swap if necessary There are other ways to distinguish between the two, just google it  
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Posted By: KENO
Date Posted: September-22-2017 at 9:43pm
| As far as swapping distributors, there are numerous different ways that people do it, I'd suggest you google that too and decide which way works for you, because if one person writes something you'll get 3 others with a different way and things will get confusing for you |
Posted By: Gary S
Date Posted: September-23-2017 at 1:12am
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Your problem comes up in the fact that 351/5.8 Ford came in flat lifter or in 94-97 roller. What distributor is the one for sale,do they ask for the year of the engine? Worse case you buy the distributor and put your gear on if you have to. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: JayG80
Date Posted: September-23-2017 at 1:44am
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Parts house was clueless for GT40. I asked Ford F-150 351 1995 distributor. I'll pull the old dizzy and compare the existing gear to Keno's pix for confirmation. Bought this https://www.oreillyauto.com/detail/spectra-premium-3848/ignition---tune-up-16776/distributor-12503/distributor/fd14/4363041/1995/ford/f-150?q=FD14" rel="nofollow - Dizzy edited ------------- 2007 Ski 2002 Ski |
Posted By: Gary S
Date Posted: September-23-2017 at 2:28am
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Other than gt40 gt40p parts I don't think Ford used that term except for marine engines. Your link didn't work for me. Every replacement on Rock Auto say's they have the cast gear.... ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: JayG80
Date Posted: September-23-2017 at 11:35am
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Thanks Gary. I edited my link. Rock Auto carries the same one I bought. Rock's is much cheaper. ------------- 2007 Ski 2002 Ski |
Posted By: gun-driver
Date Posted: September-23-2017 at 12:11pm
| When you install make sure to open the cap and plug the vent, that's the only difference between auto and marine. |
Posted By: JayG80
Date Posted: September-23-2017 at 3:29pm
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Thanks gun-driver. I'll use my current PCM cap on the new dizzy and I'll plug the auto one as advised for future use. I believe I found the SPOUT connector and read that it should be unplugged while setting the base timing to 5 degrees. Do you add lubricant to the new distributor gear just prior to installation? ------------- 2007 Ski 2002 Ski |
Posted By: 8122pbrainard
Date Posted: September-23-2017 at 3:47pm
Since the gear is new, some https://www.amsoil.com/shop/by-product/motor-oil/racing/engine-assembly-lube/" rel="nofollow - assemby grease sure wouldn't hurt. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
JayG80 wrote:Posted By: KENO
Date Posted: September-23-2017 at 4:14pm
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5 degrees with the spout disconnected is right Do you have a PCM GT-40 manual? If you don't and you click on the link below, then you will have one, courtesy of the CCF reference section  http://correctcraftfan.com/Downloads/Pro_BOss_GT-40_Service_Manual.pdf" rel="nofollow - GT-40 manual |
Posted By: MourningWood
Date Posted: September-23-2017 at 6:52pm
| Always thought the gear material should match the cam material. Cast-iron to cast-iron, steel to steel. When in doubt, use a bronze gear. |
Posted By: gun-driver
Date Posted: September-23-2017 at 9:10pm
| Should be 5° BTDC spout disconnected @ 2000 RPM |
Posted By: Canuck-Surfer
Date Posted: May-24-2023 at 9:17pm
I know this is an old thread but I came across this tonight. Gary…I’ve never heard that the GT40 came in both flat tappet and roller depending on year. I thought all PCM GT40’s were flat tappet and required cast iron gear and high zinc oil (or zinc additive) for the flat. Am I mistaken? Or are you referring to the 5.8 automotive engines came in different varieties? ------------- 1996 Sport Nautique GT40 EFI |
Posted By: Gary S
Date Posted: May-24-2023 at 11:06pm
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Technically Ford called that engine a 351W marine gasoline engine electronic fuel injection Matt, PCM called it the GT40. Ford built those engines using the same block for both but while their own vehicles they used roller cams they used flat tappet for marine use. Don't know why.
------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: Fl Inboards
Date Posted: May-25-2023 at 9:27am
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Ahh! great thread for blue oval gear heads... My thoughts on bronze dizzy gears, only if the cam shaft can support them. the "industrial" 351-w was not engineered to utilize bronze gears and a performance engineered camshaft is recommended when doing so. I should do a video on how to get an honest extra 5 hp out of early gt-40 95-97,,,, with only a 7/16" socket and and a clamp!! ------------- 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: mosinee77
Date Posted: May-25-2023 at 11:36am
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Really, the only time a bronze gear is needed is when you have a billet steel performance camshaft. Many aftermarket full roller performance cams are steel billet, normally the factory roller cams, while they may be steel, will need a normal Melonized cast gear as they are not a full billet steel camshaft. Bronze gears require frequent inspection and replacement as they are considered as a "wear item" in a performance engine. Look for a standard gear for factory flat tappet and full roller stock applications. If the gear is noted as Melonized you are good to go on both.
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Posted By: KENO
Date Posted: May-25-2023 at 7:56pm
Since you said it, I guess you should do it. or put it into words and pictures
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