Model A head bolts
Bob1942
05-28-2007, 05:55 AM
Nice to see a MODEL A FORD FORUM on here :grinyes: MY THANKS to AF Administrator IGOR ? My Model A is a 1929 Phaeton "Lulabelle"...The Engine "Blew" :shakehead about a month ago :uhoh: and I am waiting for a rebuilt engine to arrive...:) I was wondering about " BREAK IN " Should I do anything special ? and for how long ? I have coming what they call a "Touring engine " With counterbalanced crankshaft , Touring grind camshaft , Lightened flywheel and insert bearings ...I am keeping the standard Head . THANKS! BOB
Mike V. Florida
05-28-2007, 11:30 PM
Wow, you go through all the time, trouble and expense of a "touring" engine and you keep the original head?
Anyway any good rebuilder will give you instructions on how to break in and seat everything. I would (and have) run the engine for just a few miles to bring the engine up to temp and then change the oil. This, while it might seem like a waste, will help insure that all the debris that might be left after the machining will be flushed out since the Model A does not have a filter.
Next, just run the engine at various speeds never staying at one speed too long so the pistons will seat properly (about 500 to 750 miles).
Anyway any good rebuilder will give you instructions on how to break in and seat everything. I would (and have) run the engine for just a few miles to bring the engine up to temp and then change the oil. This, while it might seem like a waste, will help insure that all the debris that might be left after the machining will be flushed out since the Model A does not have a filter.
Next, just run the engine at various speeds never staying at one speed too long so the pistons will seat properly (about 500 to 750 miles).
Bob1942
05-29-2007, 12:30 PM
Wow, you go through all the time, trouble and expense of a "touring" engine and you keep the original head?
Anyway any good rebuilder will give you instructions on how to break in and seat everything. I would (and have) run the engine for just a few miles to bring the engine up to temp and then change the oil. This, while it might seem like a waste, will help insure that all the debris that might be left after the machining will be flushed out since the Model A does not have a filter.
Next, just run the engine at various speeds never staying at one speed too long so the pistons will seat properly (about 500 to 750 miles).
THANKS Mike : Just the info I need ...I find the stock engine to have plenty of power for me and my kind of driving so I am not changing the head and its another (almost) $300.00 ... I am after long engine life and smooth operation ...The rebuilder says he should ship the engine to me within two days ...BOB
Anyway any good rebuilder will give you instructions on how to break in and seat everything. I would (and have) run the engine for just a few miles to bring the engine up to temp and then change the oil. This, while it might seem like a waste, will help insure that all the debris that might be left after the machining will be flushed out since the Model A does not have a filter.
Next, just run the engine at various speeds never staying at one speed too long so the pistons will seat properly (about 500 to 750 miles).
THANKS Mike : Just the info I need ...I find the stock engine to have plenty of power for me and my kind of driving so I am not changing the head and its another (almost) $300.00 ... I am after long engine life and smooth operation ...The rebuilder says he should ship the engine to me within two days ...BOB
Mike V. Florida
05-30-2007, 08:57 PM
A high compression engine will lower the operating temp and increase MPG about 10 to 15% (at least it did with mine) I went from about 18 to about 21 MPG.
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