Tips & Tricks For Gaskets
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=26678
Printed Date: 26 Feb 2025 at 10:08pm
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Topic: Tips & Tricks For Gaskets
Posted By: Deer hunter
Subject: Tips & Tricks For Gaskets
Date Posted: 03 Mar 2011 at 5:35pm
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Looking for advice on gasket installation for a D17 engine. I plan on changing most all the gaskets on it. Do i use sealer on all of them or just some? If so what sealer works best? I will be pulling the engine out and put it on an engine stand to do this I want to do it right.
Thanks
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Replies:
Posted By: DougG
Date Posted: 03 Mar 2011 at 7:59pm
| I use HI TACK sealer from Fel -Pro I believe , its in a can has a brush and works great , doesnt set up real fast and easy to work with but does a great job of sealing ; dont use nothing on the head gasket unless the instructions say so |
Posted By: m16ty
Date Posted: 03 Mar 2011 at 9:27pm
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The best tip I know of is to make sure the mating surfaces are clean.
I have used a product called "indian head" that is a thin gasket sealer. Don't use this on something like a valve cover gasket that you may have to remove again though. That stuff sticks like glue and is very hard to remove once it sets up.
I have used copper coat on head gaskets before. I don't know if it helps or not but everything I used it on didn't leak.
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Posted By: WD45Diesel57
Date Posted: 03 Mar 2011 at 10:02pm
| i use Perma-tex HI-Tack spray on sealer works great, also high temp spray on for head gaskets |
Posted By: swit
Date Posted: 04 Mar 2011 at 3:07am
| loc tight makes a good product called gasket elimantor ive used it very lightly with a gasket works well |
Posted By: DonDittmar
Date Posted: 04 Mar 2011 at 6:41am
Indian Head Gasket Shellac. Comes in bottle with a cotton ball attached to the lid for application. I use the same stuff, especially on cork gaskets. I dont use silicone, silicone wasnt around when these tractors were built. ------------- Experience is a fancy name for past mistakes. "Great moments are born from great opportunity" 1968 D15D,1962 D19D Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start |
m16ty wrote:Posted By: sks72107
Date Posted: 04 Mar 2011 at 6:55am
| where can a fella get this indian head gasket shellac?? |
Posted By: Brian Jasper co. Ia
Date Posted: 04 Mar 2011 at 6:56am
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Try NAPA. I'm pretty sure I've seen it there. ------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: DonDittmar
Date Posted: 04 Mar 2011 at 7:00am
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Yup, my local carquest and autovalue stores carry it in stock. Probably for me, I dont think anyone else uses it. I first came across it when restoring my JD 720 Diesel. The head gasket on those is stamped steel, and the FSM tells you to coat both sides with gasket shellac before assembly. This fills minor pitting that the steel gasket would seal on. ------------- Experience is a fancy name for past mistakes. "Great moments are born from great opportunity" 1968 D15D,1962 D19D Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start |
Posted By: nella(Pa)
Date Posted: 04 Mar 2011 at 7:12am
| I will glue the valve cover gasket to the valve cover, let dry and that holds it in place when you put on the valve cover. If you have to readjust the valves when hot or after a few hours of operation then I will glue the bottem of the gasket to the head after the surfaces are well cleaned. If at a latter point in time if the valve cover has to be romoved I put on a new gasket if nessary. |
Posted By: DMiller
Date Posted: 04 Mar 2011 at 7:17am
| On tin head gaskets as on the old flatheads I use copper coat, some guys used to spray paint the head and block seal areas with aluminized paint and did fairly well with that. For general purpose I use either HiTack or Indian Head as they seem to do the best. I do avoid silicone sealants, they tend to be excessive and most are not impervious to oils or the chemicals added to oils, only GM dealer supplied black silicone does well in this category but it flashes off in less than 5 minutes working time so you have to be really quick and it has to be really clean and dry. |