Rust arount head bolts and in sparkplug wells
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Topic author - Posts: 163
- Joined: Sat Jan 12, 2019 3:20 pm
- First Name: Jeff
- Last Name: Schroeder
- * REQUIRED* Type and Year of Model Ts owned: 1916 Touring
- Location: Pensacola FL
- MTFCA Number: 50300
- MTFCI Number: 87
- Board Member Since: 2019
Rust arount head bolts and in sparkplug wells
Can anyone tell me what's going on with my engine? Thers is new rust around several of the new head bolts. I saw water bubbling up in the sparkplug wells on 3 & 4. Is my head cracked?
1916 Touring
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Re: Rust arount head bolts and in sparkplug wells
I would suspect a leaking head gasket.
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Re: Rust arount head bolts and in sparkplug wells
Are you seeing water or just compression blow by in the spark plug holes?
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
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Re: Rust arount head bolts and in sparkplug wells
Water from rain/car washing will drain into the wells around the spark plugs. That moisture will also create rust where the headbolts have removed paint as they are tensioned. As indicated, compression blowby at the plugs is common, usually bubbling in oil, but just as usual if there is water in the plug wells.
There may be absolutely nothing wrong/worth fixing.
Allan from down under.
There may be absolutely nothing wrong/worth fixing.
Allan from down under.
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Re: Rust arount head bolts and in sparkplug wells
Jeff, i would think that if you don't actually see water seeping up from the head bolts, you're probably fine. Judging from your pic it seems like tightening the head bolts just scraped off what finish you had on the head, and the little wells surrounding the bolts just accumulated water, allowing it to rust. Like Mark mentioned, its pretty common on T's to get some blow by at the spark plugs and some here have added products to the plug to keep it from leaking. Good luck.
Experience is a wonderful thing. It enables you to recognize a mistake when you make it again.
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Re: Rust arount head bolts and in sparkplug wells
Your photo does not suggest any real problem. As someone else stated, car washes can easily do what you describe. Just keep an eye on things.
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Topic author - Posts: 163
- Joined: Sat Jan 12, 2019 3:20 pm
- First Name: Jeff
- Last Name: Schroeder
- * REQUIRED* Type and Year of Model Ts owned: 1916 Touring
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Re: Rust arount head bolts and in sparkplug wells
Thank you everyone.
I just replaced the head gasket (w/copper spray) and double checked the ft lbs. (55) after a few heat-cool cycles.
I noticed the water !after! I washed the car. duh.
I'm gonna test drive it and I'll see how the power feels.
I just replaced the head gasket (w/copper spray) and double checked the ft lbs. (55) after a few heat-cool cycles.
I noticed the water !after! I washed the car. duh.
I'm gonna test drive it and I'll see how the power feels.
1916 Touring
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Re: Rust arount head bolts and in sparkplug wells
Be careful pulling 55 lbs. !
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Re: Rust arount head bolts and in sparkplug wells
The spark plugs are pipe thread. Use some pipe thread sealant on them.
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Topic author - Posts: 163
- Joined: Sat Jan 12, 2019 3:20 pm
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Re: Rust arount head bolts and in sparkplug wells
Won't that risk debris falling into the combustion chamber when I remove them?
1916 Touring
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Re: Rust arount head bolts and in sparkplug wells
My choice of what to use on the spark plugs. Enjoy
https://www.permatex.com/products/lubri ... lubricant/
https://www.permatex.com/products/lubri ... lubricant/
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Re: Rust arount head bolts and in sparkplug wells
Re Won't that risk debris falling into;
A; No not really, it's just a thin coat. Even if it did, it would blow out the exhaust when the engine fired.
B; I have been using white teflon tape for years with no issue. One or two layers is all that is needed. The threads cut thru and have never had a firing issue. Some use aluminum foil.
A; No not really, it's just a thin coat. Even if it did, it would blow out the exhaust when the engine fired.
B; I have been using white teflon tape for years with no issue. One or two layers is all that is needed. The threads cut thru and have never had a firing issue. Some use aluminum foil.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
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- Posts: 4357
- Joined: Sun Jan 06, 2019 12:18 pm
- First Name: Steve
- Last Name: Tomaso
- * REQUIRED* Type and Year of Model Ts owned: 1914 Touring, 1919 Centerdoor, 1924 TT C-Cab Express, 1925 Racer
- Location: Longbranch, WA
- MTFCA Number: 14972
- MTFCI Number: 15411
- Board Member Since: 2001
Re: Rust arount head bolts and in sparkplug wells
One might consider blowing the wells out with air prior to removal !
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Re: Rust arount head bolts and in sparkplug wells
[quote=Jeff5015 post_id=19084 time=1553556321 user_id=1008]
Thank you everyone.
I just replaced the head gasket (w/copper spray) and double checked the ft lbs. (55) after a few heat-cool cycles.
I noticed the water !after! I washed the car. duh.
I'm gonna test drive it and I'll see how the power feels.
[/quote]
When I wash any Model T or Model A I drape a large plastic garbage bag across the top of the engine so nothing gets wet. This is assuming a cold engine!
Thank you everyone.
I just replaced the head gasket (w/copper spray) and double checked the ft lbs. (55) after a few heat-cool cycles.
I noticed the water !after! I washed the car. duh.
I'm gonna test drive it and I'll see how the power feels.
[/quote]
When I wash any Model T or Model A I drape a large plastic garbage bag across the top of the engine so nothing gets wet. This is assuming a cold engine!