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Truck Repair/N14 exhaust manifold leak

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Question
Replaced 99 N14 with a crate engine. Rebuilt after 80 thou. ( water pump failed. Scored rear two liners )
Works great except for exhaust manifold leak. Tried factory and aftermarket manifolds. Leaks at joints,not a lot but enough that it reaks when a/c or heater on while stopped.  Used VersaChem joint and crack sealer at joints. Works great; for three days. Is there a wrap type product or something that can stand up to Commerical on road use?

Answer
Are they still leaking after then engine gets hot. The way that manifold is designed it will leak for a little while til the engine gets hot once it gets hot the joints swell to seal off. As for your question might look up high performance auto parts they sell a kevlar type wrap that helps to lower your header temps might work at sealing out exhaust fumes.

Truck Repair

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Jeff Drumm

Expertise

I Can answer any question pertaining to semi trucks and trailers. Have no experience in the automotive field so not able to help in that area.

Experience

My experiences in Semi Trucks is. I own my own truck and i presntly maintain a 80 truck fleet. Can handle any questions pertaining to a truck have tore apart and rebuilt every aspect on them. Fleet I deal with is Mainly Volvo trucks and a handful of freightliners. Work on automated transmissions on a daily basis along with carrier apu's. With engines my specialty is the 60 series Detroit but do work on the cummins isx the n-14 and the ism. and also the Volvo engines.

Education/Credentials
Have a College Degree from university of northwestern ohio in diesel and agriculture mechanics. Have 10 years behind the wheel driving a truck and 4 years working on trucks full time. Also have grown up on a farm so have been tinkering on trucks and tractors all my life.

Awards and Honors
I've gone through online schooling and have received certificates from webb wheel, Timken and Volvo academy.

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