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Old 24-07-2019, 11:52 AM   #1
oj77
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Default Cylinder Heads - Part Number = ?

Afternoon,

I think I got mugged off on eBay..........no surprise I hear you say. I bought what I was told and thought to be 1600 DP heads in good condition.
On closer inspection I found a crack and spark plug thread missing. But the biggest concern was they dont fit the B+P I have for a 1600.

Is the cylinder head part number 113 101 375 for a 1300 or 1600 ?

(90mm across the bore of the head.)

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Old 24-07-2019, 12:09 PM   #2
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Take the case up with eBay and/or Paypal. They nearly always side with the buyer.
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Old 24-07-2019, 12:52 PM   #3
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That number is a 1600 head but the crack near the spark plug hole means it isnt very good. Agreed chase up with ebay and they should side with you. Out of interest what size are your barrels (as you say they dont fit?)
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Old 24-07-2019, 02:24 PM   #4
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Quote:
Originally Posted by David.H View Post
That number is a 1600 head but the crack near the spark plug hole means it isnt very good. Agreed chase up with ebay and they should side with you. Out of interest what size are your barrels (as you say they dont fit?)
Barrels measure ID 87 and OD 93.8 - Veewee Part No 164VG0130 https://www.veewee.co.uk/164vg0130 - 1641 bolt on.

Cylinder head to barrel ID 90

Just measured the exhaust valve at 32mm so that fits with 1600 correct ?

Last edited by oj77; 24-07-2019 at 02:27 PM..
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Old 24-07-2019, 11:16 PM   #5
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Just measured the recess in a pair of brand new 1600 heads - 93.8mm

So, assuming your heads are twinports, then you have 1300 ones. I wouldn't trust valve sizes or casting numbers - different years / models / countries used different valve sizes and the number in the head is there from the casting, the head can then either be machined into a 1300 or a 1600 item.

Raise a case with the seller for a refund.
And never buy second hand heads - it's false economy. You have no idea what abuse they have already had, and chances are you'll have to renew the valve guides and exhaust valves as a bare minimum so you're already on your way to the price of new heads anyway.


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Old 25-07-2019, 09:50 AM   #6
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Thanks Dave for your reply.

I have already repaired the spark plug thread, so scuppered any eBay refund.

I'll strip them down and check the valve stems etc. And if everything else checks out, I can machine the bore to accept the barrels. I am a cheap skate plus it give me something to do in my spare time, I have a machine shop at work.
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Old 25-07-2019, 08:32 PM   #7
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That's OK then - you have the technology.

Check valve guide wear very carefully, exhaust guides wear faster than inlets. Dropped exhaust valves have scrapped many an engine so I would bin them regardless.
I lost a really good 1500, crankcase and all, because I re-used old exhaust valves trying to save a few quid.

Check side to side slop with the new ones and fit new valve guides if there's more than 1mm movement in the head with the valve dropped in then fit new guides, or re-line the old ones.

It's usually OK to re-use inlets as they don't have anywhere near as hard a life.

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