I have a 67 Corvette and the engine pad has spots of rust on it from sitting over the years. Is there a way to remove the rust to make the numbers more visible on the block.
-
-
Re: Rust on engine pad
do not use anything abrasive, just a rag with some penetrant on it, and a lot of elbow grease. work a little at a time. get it so the broach marks and numbers can be read only.If you have engine paint use a rag and apply solvent to the rag also. Be careful around the body paint.New England chapter member, 63 Convert. 327/340- Chapter/Regional/national Top Flight, 72 coupe- chapter and regional Top Flight. -
Re: Rust on engine pad
Rust is not a bad thing. If it ain't rusty, it ain't real.
May the rust be with you.
KramdenKramdenComment
-
Re: Rust on engine pad
How about a picture?Comment
-
Re: Rust on engine pad
If it is very bad or has heavy rust spots you might try some common marine ruse remover. I agree no buffing or abrasive.Comment
-
Re: Rust on engine pad
I have had a lot of success in bringing out broach marks using a cup-type wire wheel on an angle grinder. It will remove loose rust and polish the pad nicely.
Be sure to wear ALL appropriate PPG (Personal Protective Gear) = safety glasses AND a face shield, gloves and long sleeve shirt. Spinning wire wheels can be very nasty when the get loose.TerryComment
-
Re: Rust on engine pad
Use Navel Jerry or any type of rust remover that won't attack the base metal. That along with a soft brass brush to help remove the rust. I've attached a few pictures of my '64 convertible's stamp pad just after cleaning with the navel jelly. These pictures went to Al Grenning for evaluation. The scratches were made by a seventeen year old kid (me) back in 1980 that had no idea how important a stamp pad surface would be for Corvette engine authenticity.
Regards,
JamesLast edited by James W.; August 9, 2017, 12:52 PM.Comment
-
Re: Rust on engine pad
What was Al's comments?Comment
-
Re: Rust on engine pad
Jerry,
Based in the block casting date, original pad broach marks, VIN stamping and the engine suffix D being a bounce or double strike, Al certified it as original.
The NCRS judges called the engine suffix NTFP at the 2014 national convention due to the D in the engine suffix being raised. It was judged a three previous chapter meets by 300 and 400 master level judges as being acceptable. It was also called NTFP at the 2012 North Central Chapter regional meet but was overturned by the National Judging Chairman at that time.
Regards,
JamesLast edited by James W.; August 10, 2017, 12:06 PM.Comment
-
Re: Rust on engine pad
NTFP??? That's a new acronym to me
Please explain!Comment
-
Re: Rust on engine pad
I have had excellent results on several pads using Naval Jelly and a soft rag or a soft brush. The Naval Jelly dissolves rust but does not attack the metal itself.
The first step is to use something like lacquer thinner or acetone with a soft rag to remove all traces of paint and oil. Then apply the Naval Jelly with a soft rag or a soft bristle brush an WAIT. Patience is important because the Naval Jelly works very slowly. It also dries out in a few hours and needs to be re-applied. It's not unusual to take two or three overnight applications to dissolve all the rust on a pad. However, if you are patient, you will be rewarded with a pad that has had all rust removed without any damage whatsoever to the underlying metal. This often reveals very nice broach marks.Comment
-
Re: Rust on engine pad
Do not use anything abrasive. The judges only want to see scratches Chevrolet made when they machined your block. They do not want to see any other marks or scratches. And they can tell the difference. They will examine that pad with a magnifying glass to look for the right scratches.Comment
-
Re: Rust on engine pad
A brass or plastic brush, even a hard bristled tooth brush will work. They are all softer than the cast iron block material. Joe is correct about being patient and letting the navel jelly do its thing, even if it takes several car coats and attempts to get it clean. Don't forget to put some Pre-Lube 6 on it when you are done to keep it from rusting again.
Regards,
James WestComment
Comment